45157000121 has 4 divisors (see below), whose sum is σ = 45290997492. Its totient is φ = 45023002752.

The previous prime is 45157000103. The next prime is 45157000129. The reversal of 45157000121 is 12100075154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33311725225 + 11845274896 = 182515^2 + 108836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45157000121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45157000129) 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, 66998180 + ... + 66998853.

It is an arithmetic number, because the mean of its divisors is an integer number (11322749373).

Almost surely, 2^45157000121 is an apocalyptic number.

It is an amenable number.

45157000121 is a deficient number, since it is larger than the sum of its proper divisors (133997371).

45157000121 is a wasteful number, since it uses less digits than its factorization.

45157000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133997370.

The product of its (nonzero) digits is 1400, while the sum is 26.

Adding to 45157000121 its reverse (12100075154), we get a palindrome (57257075275).

The spelling of 45157000121 in words is "forty-five billion, one hundred fifty-seven million, one hundred twenty-one", and thus it is an aban number.