82151013 has 16 divisors (see below), whose sum is σ = 125879936. Its totient is φ = 46681920.

The previous prime is 82150979. The next prime is 82151033. The reversal of 82151013 is 31015128.

It is not a de Polignac number, because 82151013 - 2²¹ = 80053861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82151033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7006 + ... + 14607.

It is an arithmetic number, because the mean of its divisors is an integer number (7867496).

Almost surely, 2^82151013 is an apocalyptic number.

It is an amenable number.

82151013 is a deficient number, since it is larger than the sum of its proper divisors (43728923).

82151013 is a wasteful number, since it uses less digits than its factorization.

82151013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21804.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 82151013 is about 9063.7196006937. The cubic root of 82151013 is about 434.7146814419.

The spelling of 82151013 in words is "eighty-two million, one hundred fifty-one thousand, thirteen".