45765991 has 4 divisors (see below), whose sum is σ = 45798984. Its totient is φ = 45733000.

The previous prime is 45765983. The next prime is 45765997. The reversal of 45765991 is 19956754.

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 45765991 - 2³ = 45765983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45765997) 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, 14320 + ... + 17221.

It is an arithmetic number, because the mean of its divisors is an integer number (11449746).

Almost surely, 2^45765991 is an apocalyptic number.

45765991 is a deficient number, since it is larger than the sum of its proper divisors (32993).

45765991 is a wasteful number, since it uses less digits than its factorization.

45765991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32992.

The product of its digits is 340200, while the sum is 46.

The square root of 45765991 is about 6765.0566146929. The cubic root of 45765991 is about 357.6961702308.

The spelling of 45765991 in words is "forty-five million, seven hundred sixty-five thousand, nine hundred ninety-one".