81462952 has 32 divisors (see below), whose sum is σ = 156880800. Its totient is φ = 39642304.

The previous prime is 81462949. The next prime is 81462971. The reversal of 81462952 is 25926418.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49698 + ... + 51310.

It is an arithmetic number, because the mean of its divisors is an integer number (4902525).

Almost surely, 2^81462952 is an apocalyptic number.

It is an amenable number.

81462952 is a deficient number, since it is larger than the sum of its proper divisors (75417848).

81462952 is a wasteful number, since it uses less digits than its factorization.

81462952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1781 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 81462952 is about 9025.6829104506. The cubic root of 81462952 is about 433.4976171309.

The spelling of 81462952 in words is "eighty-one million, four hundred sixty-two thousand, nine hundred fifty-two".