45831691 has 2 divisors, whose sum is σ = 45831692. Its totient is φ = 45831690.

The previous prime is 45831673. The next prime is 45831701. The reversal of 45831691 is 19613854.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45831691 - 2⁹ = 45831179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45831691.

It is not a weakly prime, because it can be changed into another prime (45831091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22915845 + 22915846.

It is an arithmetic number, because the mean of its divisors is an integer number (22915846).

Almost surely, 2^45831691 is an apocalyptic number.

45831691 is a deficient number, since it is larger than the sum of its proper divisors (1).

45831691 is an equidigital number, since it uses as much as digits as its factorization.

45831691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 45831691 is about 6769.9107084215. The cubic root of 45831691 is about 357.8672536145.

The spelling of 45831691 in words is "forty-five million, eight hundred thirty-one thousand, six hundred ninety-one".