81074315 has 16 divisors (see below), whose sum is σ = 111334080. Its totient is φ = 55520640.

The previous prime is 81074293. The next prime is 81074341. The reversal of 81074315 is 51347018.

It is not a de Polignac number, because 81074315 - 2⁶ = 81074251 is a prime.

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, 49205 + ... + 50825.

It is an arithmetic number, because the mean of its divisors is an integer number (6958380).

Almost surely, 2^81074315 is an apocalyptic number.

81074315 is a deficient number, since it is larger than the sum of its proper divisors (30259765).

81074315 is a wasteful number, since it uses less digits than its factorization.

81074315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 81074315 is about 9004.1276645770. The cubic root of 81074315 is about 432.8071525924.

The spelling of 81074315 in words is "eighty-one million, seventy-four thousand, three hundred fifteen".