80071513 has 8 divisors (see below), whose sum is σ = 84923208. Its totient is φ = 75235584.

The previous prime is 80071507. The next prime is 80071531. The reversal of 80071513 is 31517008.

It can be written as a sum of positive squares in 4 ways, for example, as 23941449 + 56130064 = 4893^2 + 7492^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80071513 - 2²¹ = 77974361 is a prime.

It is a super-2 number, since 2×80071513² = 12822894388218338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80071553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7495 + ... + 14707.

It is an arithmetic number, because the mean of its divisors is an integer number (10615401).

Almost surely, 2^80071513 is an apocalyptic number.

It is an amenable number.

80071513 is a deficient number, since it is larger than the sum of its proper divisors (4851695).

80071513 is a wasteful number, since it uses less digits than its factorization.

80071513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 80071513 is about 8948.2687152320. The cubic root of 80071513 is about 431.0152915084.

The spelling of 80071513 in words is "eighty million, seventy-one thousand, five hundred thirteen".