76138915 has 8 divisors (see below), whose sum is σ = 91457280. Its totient is φ = 60850752.

The previous prime is 76138897. The next prime is 76138943. The reversal of 76138915 is 51983167.

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 76138915 - 2²¹ = 74041763 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, 1570 + ... + 12439.

It is an arithmetic number, because the mean of its divisors is an integer number (11432160).

Almost surely, 2^76138915 is an apocalyptic number.

76138915 is a deficient number, since it is larger than the sum of its proper divisors (15318365).

76138915 is a wasteful number, since it uses less digits than its factorization.

76138915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15101.

The product of its digits is 45360, while the sum is 40.

The square root of 76138915 is about 8725.7615713472. The cubic root of 76138915 is about 423.8402800425.

The spelling of 76138915 in words is "seventy-six million, one hundred thirty-eight thousand, nine hundred fifteen".