45916681 has 2 divisors, whose sum is σ = 45916682. Its totient is φ = 45916680.

The previous prime is 45916631. The next prime is 45916693. The reversal of 45916681 is 18661954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37454400 + 8462281 = 6120^2 + 2909^2 .

It is a cyclic number.

It is not a de Polignac number, because 45916681 - 2⁷ = 45916553 is a prime.

It is a super-2 number, since 2×45916681² = 4216683188111522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45916601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22958340 + 22958341.

It is an arithmetic number, because the mean of its divisors is an integer number (22958341).

Almost surely, 2^45916681 is an apocalyptic number.

It is an amenable number.

45916681 is a deficient number, since it is larger than the sum of its proper divisors (1).

45916681 is an equidigital number, since it uses as much as digits as its factorization.

45916681 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 45916681 is about 6776.1848410444. The cubic root of 45916681 is about 358.0883259483.

The spelling of 45916681 in words is "forty-five million, nine hundred sixteen thousand, six hundred eighty-one".