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137625000121 = 7191873552469
BaseRepresentation
bin1000000000101100010…
…1101101100010111001
3111011020022201101101201
42000023011231202321
54223324000000441
6143120221214201
712641322125260
oct2001305554271
9434208641351
10137625000121
11534037a7624
122280a401361
13cc9381a61b
1469380395d7
1538a7487c31
hex200b16d8b9

137625000121 has 16 divisors (see below), whose sum is σ = 165652604800. Its totient is φ = 111695770368.

The previous prime is 137625000103. The next prime is 137625000127. The reversal of 137625000121 is 121000526731.

It is a happy number.

It is not a de Polignac number, because 137625000121 - 29 = 137624999609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137625000121.

It is not an unprimeable number, because it can be changed into a prime (137625000127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27126 + ... + 525343.

It is an arithmetic number, because the mean of its divisors is an integer number (10353287800).

Almost surely, 2137625000121 is an apocalyptic number.

137625000121 is the 214185-th hex number.

It is an amenable number.

137625000121 is a deficient number, since it is larger than the sum of its proper divisors (28027604679).

137625000121 is a wasteful number, since it uses less digits than its factorization.

137625000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554368.

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 137625000121 its reverse (121000526731), we get a palindrome (258625526852).

The spelling of 137625000121 in words is "one hundred thirty-seven billion, six hundred twenty-five million, one hundred twenty-one", and thus it is an aban number.

Divisors: 1 7 19 133 1873 13111 35587 249109 552469 3867283 10496911 73478377 1034774437 7243421059 19660714303 137625000121