45805691 has 2 divisors, whose sum is σ = 45805692. Its totient is φ = 45805690.

The previous prime is 45805681. The next prime is 45805709. The reversal of 45805691 is 19650854.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45805691 is a prime.

It is a super-2 number, since 2×45805691² = 4196322655974962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45805601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22902845 + 22902846.

It is an arithmetic number, because the mean of its divisors is an integer number (22902846).

Almost surely, 2^45805691 is an apocalyptic number.

45805691 is a deficient number, since it is larger than the sum of its proper divisors (1).

45805691 is an equidigital number, since it uses as much as digits as its factorization.

45805691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 45805691 is about 6767.9901743427. The cubic root of 45805691 is about 357.7995689447.

The spelling of 45805691 in words is "forty-five million, eight hundred five thousand, six hundred ninety-one".