71452516 has 6 divisors (see below), whose sum is σ = 125041910. Its totient is φ = 35726256.

The previous prime is 71452501. The next prime is 71452519. The reversal of 71452516 is 61525417.

It can be written as a sum of positive squares in only one way, i.e., 62726400 + 8726116 = 7920^2 + 2954^2 .

It is not an unprimeable number, because it can be changed into a prime (71452519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8931561 + ... + 8931568.

Almost surely, 2^71452516 is an apocalyptic number.

It is an amenable number.

71452516 is a deficient number, since it is larger than the sum of its proper divisors (53589394).

71452516 is a wasteful number, since it uses less digits than its factorization.

71452516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17863133 (or 17863131 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 71452516 is about 8452.9590085366. The cubic root of 71452516 is about 414.9596244651.

The spelling of 71452516 in words is "seventy-one million, four hundred fifty-two thousand, five hundred sixteen".