71538152 has 32 divisors (see below), whose sum is σ = 154113600. Its totient is φ = 30495744.

The previous prime is 71538139. The next prime is 71538161. The reversal of 71538152 is 25183517.

It is a super-3 number, since 3×71538152³ (a number of 25 digits) contains 333 as substring.

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, 7499 + ... + 14117.

It is an arithmetic number, because the mean of its divisors is an integer number (4816050).

Almost surely, 2^71538152 is an apocalyptic number.

It is an amenable number.

71538152 is an abundant number, since it is smaller than the sum of its proper divisors (82575448).

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

71538152 is a wasteful number, since it uses less digits than its factorization.

71538152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6825 (or 6821 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 71538152 is about 8458.0229368334. The cubic root of 71538152 is about 415.1253349601.

The spelling of 71538152 in words is "seventy-one million, five hundred thirty-eight thousand, one hundred fifty-two".