45111691 has 2 divisors, whose sum is σ = 45111692. Its totient is φ = 45111690.

The previous prime is 45111679. The next prime is 45111701. The reversal of 45111691 is 19611154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45111691 - 2⁹ = 45111179 is a prime.

It is equal to p_2724544 and since 45111691 and 2724544 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (45111611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22555845 + 22555846.

It is an arithmetic number, because the mean of its divisors is an integer number (22555846).

Almost surely, 2^45111691 is an apocalyptic number.

45111691 is a deficient number, since it is larger than the sum of its proper divisors (1).

45111691 is an equidigital number, since it uses as much as digits as its factorization.

45111691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 28.

The square root of 45111691 is about 6716.5237288347. The cubic root of 45111691 is about 355.9833635915.

The spelling of 45111691 in words is "forty-five million, one hundred eleven thousand, six hundred ninety-one".