81467315 has 8 divisors (see below), whose sum is σ = 103511520. Its totient is φ = 61340032.

The previous prime is 81467299. The next prime is 81467329. The reversal of 81467315 is 51376418.

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 81467315 - 2⁴ = 81467299 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, 479135 + ... + 479304.

It is an arithmetic number, because the mean of its divisors is an integer number (12938940).

Almost surely, 2^81467315 is an apocalyptic number.

81467315 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

81467315 is a deficient number, since it is larger than the sum of its proper divisors (22044205).

81467315 is a wasteful number, since it uses less digits than its factorization.

81467315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958461.

The product of its digits is 20160, while the sum is 35.

The square root of 81467315 is about 9025.9246063769. The cubic root of 81467315 is about 433.5053560940.

The spelling of 81467315 in words is "eighty-one million, four hundred sixty-seven thousand, three hundred fifteen".