82253139 has 16 divisors (see below), whose sum is σ = 111888000. Its totient is φ = 53733056.

The previous prime is 82253131. The next prime is 82253161. The reversal of 82253139 is 93135228.

It is a cyclic number.

It is not a de Polignac number, because 82253139 - 2³ = 82253131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82253131) 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, 77887 + ... + 78935.

It is an arithmetic number, because the mean of its divisors is an integer number (6993000).

Almost surely, 2^82253139 is an apocalyptic number.

82253139 is a deficient number, since it is larger than the sum of its proper divisors (29634861).

82253139 is a wasteful number, since it uses less digits than its factorization.

82253139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554.

The product of its digits is 12960, while the sum is 33.

The square root of 82253139 is about 9069.3516306294. The cubic root of 82253139 is about 434.8947453097.

The spelling of 82253139 in words is "eighty-two million, two hundred fifty-three thousand, one hundred thirty-nine".