81412595 has 8 divisors (see below), whose sum is σ = 106576560. Its totient is φ = 59209120.

The previous prime is 81412579. The next prime is 81412607. The reversal of 81412595 is 59521418.

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

It is not a de Polignac number, because 81412595 - 2⁴ = 81412579 is a prime.

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, 740060 + ... + 740169.

It is an arithmetic number, because the mean of its divisors is an integer number (13322070).

Almost surely, 2^81412595 is an apocalyptic number.

81412595 is a deficient number, since it is larger than the sum of its proper divisors (25163965).

81412595 is a wasteful number, since it uses less digits than its factorization.

81412595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480245.

The product of its digits is 14400, while the sum is 35.

The square root of 81412595 is about 9022.8928287994. The cubic root of 81412595 is about 433.4082753357.

The spelling of 81412595 in words is "eighty-one million, four hundred twelve thousand, five hundred ninety-five".