45091137 has 32 divisors (see below), whose sum is σ = 74368000. Its totient is φ = 23664960.

The previous prime is 45091121. The next prime is 45091141. The reversal of 45091137 is 73119054.

It is not a de Polignac number, because 45091137 - 2⁴ = 45091121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45091187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90114 + ... + 90612.

It is an arithmetic number, because the mean of its divisors is an integer number (2324000).

Almost surely, 2^45091137 is an apocalyptic number.

It is an amenable number.

45091137 is a deficient number, since it is larger than the sum of its proper divisors (29276863).

45091137 is a wasteful number, since it uses less digits than its factorization.

45091137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 45091137 is about 6714.9934475024. The cubic root of 45091137 is about 355.9292904424.

The spelling of 45091137 in words is "forty-five million, ninety-one thousand, one hundred thirty-seven".