45101121 has 16 divisors (see below), whose sum is σ = 65545536. Its totient is φ = 27418176.

The previous prime is 45101099. The next prime is 45101131. The reversal of 45101121 is 12110154.

It is a happy number.

It is not a de Polignac number, because 45101121 - 2⁶ = 45101057 is a prime.

It is a super-2 number, since 2×45101121² = 4068222230913282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45101121.

It is not an unprimeable number, because it can be changed into a prime (45101131) 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, 3730 + ... + 10203.

It is an arithmetic number, because the mean of its divisors is an integer number (4096596).

Almost surely, 2^45101121 is an apocalyptic number.

It is an amenable number.

45101121 is a deficient number, since it is larger than the sum of its proper divisors (20444415).

45101121 is a wasteful number, since it uses less digits than its factorization.

45101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14032.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 45101121 is about 6715.7368173567. The cubic root of 45101121 is about 355.9555582489.

Adding to 45101121 its reverse (12110154), we get a palindrome (57211275).

The spelling of 45101121 in words is "forty-five million, one hundred one thousand, one hundred twenty-one".