82151279 has 16 divisors (see below), whose sum is σ = 95648256. Its totient is φ = 69108000.

The previous prime is 82151273. The next prime is 82151297. The reversal of 82151279 is 97215128.

It is a cyclic number.

It is not a de Polignac number, because 82151279 - 2⁴ = 82151263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82151273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92174 + ... + 93060.

It is an arithmetic number, because the mean of its divisors is an integer number (5978016).

Almost surely, 2^82151279 is an apocalyptic number.

82151279 is a deficient number, since it is larger than the sum of its proper divisors (13496977).

82151279 is a wasteful number, since it uses less digits than its factorization.

82151279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126.

The product of its digits is 10080, while the sum is 35.

The square root of 82151279 is about 9063.7342745692. The cubic root of 82151279 is about 434.7151506346.

The spelling of 82151279 in words is "eighty-two million, one hundred fifty-one thousand, two hundred seventy-nine".