81362032 has 20 divisors (see below), whose sum is σ = 157831416. Its totient is φ = 40631360.

The previous prime is 81362027. The next prime is 81362033. The reversal of 81362032 is 23026318.

It is a junction number, because it is equal to n+sod(n) for n = 81361988 and 81362006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81362033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12918 + ... + 18154.

Almost surely, 2^81362032 is an apocalyptic number.

It is an amenable number.

81362032 is a deficient number, since it is larger than the sum of its proper divisors (76469384).

81362032 is a wasteful number, since it uses less digits than its factorization.

81362032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216 (or 6210 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 81362032 is about 9020.0904651783. The cubic root of 81362032 is about 433.3185309868.

The spelling of 81362032 in words is "eighty-one million, three hundred sixty-two thousand, thirty-two".