76139271 has 20 divisors (see below), whose sum is σ = 122489752. Its totient is φ = 46854288.

The previous prime is 76139249. The next prime is 76139281. The reversal of 76139271 is 17293167.

It is a happy number.

It is not a de Polignac number, because 76139271 - 2⁶ = 76139207 is a prime.

It is a super-2 number, since 2×76139271² = 11594377176822882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76139281) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35101 + ... + 37206.

Almost surely, 2^76139271 is an apocalyptic number.

76139271 is a deficient number, since it is larger than the sum of its proper divisors (46350481).

76139271 is a wasteful number, since it uses less digits than its factorization.

76139271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72332 (or 72323 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 76139271 is about 8725.7819706889. The cubic root of 76139271 is about 423.8409406198.

The spelling of 76139271 in words is "seventy-six million, one hundred thirty-nine thousand, two hundred seventy-one".