82151472 has 80 divisors (see below), whose sum is σ = 230172768. Its totient is φ = 25098240.

The previous prime is 82151467. The next prime is 82151521. The reversal of 82151472 is 27415128.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107572 + ... + 108332.

Almost surely, 2^82151472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82151472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115086384).

82151472 is an abundant number, since it is smaller than the sum of its proper divisors (148021296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82151472 is a wasteful number, since it uses less digits than its factorization.

82151472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 952 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 82151472 is about 9063.7449213887. The cubic root of 82151472 is about 434.7154910633.

The spelling of 82151472 in words is "eighty-two million, one hundred fifty-one thousand, four hundred seventy-two".