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121027141 = 445127191
BaseRepresentation
bin1110011011010…
…11101001000101
322102201211000201
413031223221011
5221440332031
620002010501
72666466544
oct715535105
9272654021
10121027141
1162353534
1234646a31
131c0c65c1
141210615b
15a959d61
hex736ba45

121027141 has 4 divisors (see below), whose sum is σ = 121058784. Its totient is φ = 120995500.

The previous prime is 121027103. The next prime is 121027177. The reversal of 121027141 is 141720121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121027141 - 215 = 120994373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121027741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9145 + ... + 18046.

It is an arithmetic number, because the mean of its divisors is an integer number (30264696).

Almost surely, 2121027141 is an apocalyptic number.

It is an amenable number.

121027141 is a deficient number, since it is larger than the sum of its proper divisors (31643).

121027141 is an equidigital number, since it uses as much as digits as its factorization.

121027141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31642.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 121027141 is about 11001.2336126454. The cubic root of 121027141 is about 494.6457227611.

Adding to 121027141 its reverse (141720121), we get a palindrome (262747262).

The spelling of 121027141 in words is "one hundred twenty-one million, twenty-seven thousand, one hundred forty-one".

Divisors: 1 4451 27191 121027141