45861619 has 2 divisors, whose sum is σ = 45861620. Its totient is φ = 45861618.

The previous prime is 45861587. The next prime is 45861661. The reversal of 45861619 is 91616854.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45861619 - 2⁵ = 45861587 is a prime.

It is a super-2 number, since 2×45861619² = 4206576194602322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45861689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22930809 + 22930810.

It is an arithmetic number, because the mean of its divisors is an integer number (22930810).

Almost surely, 2^45861619 is an apocalyptic number.

45861619 is a deficient number, since it is larger than the sum of its proper divisors (1).

45861619 is an equidigital number, since it uses as much as digits as its factorization.

45861619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 45861619 is about 6772.1207165850. The cubic root of 45861619 is about 357.9451321924.

The spelling of 45861619 in words is "forty-five million, eight hundred sixty-one thousand, six hundred nineteen".