45162981 has 16 divisors (see below), whose sum is σ = 70430400. Its totient is φ = 28523664.

The previous prime is 45162973. The next prime is 45162989. The reversal of 45162981 is 18926154.

It is an interprime number because it is at equal distance from previous prime (45162973) and next prime (45162989).

It is not a de Polignac number, because 45162981 - 2³ = 45162973 is a prime.

It is a super-2 number, since 2×45162981² = 4079389705612722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45162989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43506 + ... + 44531.

It is an arithmetic number, because the mean of its divisors is an integer number (4401900).

Almost surely, 2^45162981 is an apocalyptic number.

It is an amenable number.

45162981 is a deficient number, since it is larger than the sum of its proper divisors (25267419).

45162981 is a wasteful number, since it uses less digits than its factorization.

45162981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88065 (or 88059 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 45162981 is about 6720.3408395706. The cubic root of 45162981 is about 356.1182249473.

The spelling of 45162981 in words is "forty-five million, one hundred sixty-two thousand, nine hundred eighty-one".