45129957 has 4 divisors (see below), whose sum is σ = 60173280. Its totient is φ = 30086636.

The previous prime is 45129949. The next prime is 45129967. The reversal of 45129957 is 75992154.

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 45129957 - 2³ = 45129949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45129907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7521657 + ... + 7521662.

It is an arithmetic number, because the mean of its divisors is an integer number (15043320).

Almost surely, 2^45129957 is an apocalyptic number.

It is an amenable number.

45129957 is a deficient number, since it is larger than the sum of its proper divisors (15043323).

45129957 is a wasteful number, since it uses less digits than its factorization.

45129957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15043322.

The product of its digits is 113400, while the sum is 42.

The square root of 45129957 is about 6717.8833720153. The cubic root of 45129957 is about 356.0314037230.

The spelling of 45129957 in words is "forty-five million, one hundred twenty-nine thousand, nine hundred fifty-seven".