45157907 has 4 divisors (see below), whose sum is σ = 45231480. Its totient is φ = 45084336.

The previous prime is 45157883. The next prime is 45157919. The reversal of 45157907 is 70975154.

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

It is a cyclic number.

It is not a de Polignac number, because 45157907 - 2¹² = 45153811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45150907) 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, 35858 + ... + 37095.

It is an arithmetic number, because the mean of its divisors is an integer number (11307870).

Almost surely, 2^45157907 is an apocalyptic number.

45157907 is a deficient number, since it is larger than the sum of its proper divisors (73573).

45157907 is an equidigital number, since it uses as much as digits as its factorization.

45157907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73572.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 45157907 is about 6719.9633183523. The cubic root of 45157907 is about 356.1048879804.

It can be divided in two parts, 45157 and 907, that added together give a palindrome (46064).

The spelling of 45157907 in words is "forty-five million, one hundred fifty-seven thousand, nine hundred seven".