45129915 has 12 divisors (see below), whose sum is σ = 78225264. Its totient is φ = 24069264.

The previous prime is 45129907. The next prime is 45129941. The reversal of 45129915 is 51992154.

It is not a de Polignac number, because 45129915 - 2³ = 45129907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45129915.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501399 + ... + 501488.

It is an arithmetic number, because the mean of its divisors is an integer number (6518772).

Almost surely, 2^45129915 is an apocalyptic number.

45129915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45129915 is a deficient number, since it is larger than the sum of its proper divisors (33095349).

45129915 is a wasteful number, since it uses less digits than its factorization.

45129915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002898 (or 1002895 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 45129915 is about 6717.8802460300. The cubic root of 45129915 is about 356.0312932766.

The spelling of 45129915 in words is "forty-five million, one hundred twenty-nine thousand, nine hundred fifteen".