45610981 has 16 divisors (see below), whose sum is σ = 50465520. Its totient is φ = 40965120.

The previous prime is 45610969. The next prime is 45611011. The reversal of 45610981 is 18901654.

It can be written as a sum of positive squares in 8 ways, for example, as 16892100 + 28718881 = 4110^2 + 5359^2 .

It is a cyclic number.

It is not a de Polignac number, because 45610981 - 2²⁵ = 12056549 is a prime.

It is a super-2 number, since 2×45610981² = 4160723175564722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45610681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89355 + ... + 89863.

It is an arithmetic number, because the mean of its divisors is an integer number (3154095).

Almost surely, 2^45610981 is an apocalyptic number.

It is an amenable number.

45610981 is a deficient number, since it is larger than the sum of its proper divisors (4854539).

45610981 is a wasteful number, since it uses less digits than its factorization.

45610981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 45610981 is about 6753.5902303886. The cubic root of 45610981 is about 357.2918729240.

The spelling of 45610981 in words is "forty-five million, six hundred ten thousand, nine hundred eighty-one".