82512742 has 16 divisors (see below), whose sum is σ = 134178912. Its totient is φ = 37828800.

The previous prime is 82512733. The next prime is 82512751. The reversal of 82512742 is 24721528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82512733) and next prime (82512751).

It is a congruent number.

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, 6583 + ... + 14434.

It is an arithmetic number, because the mean of its divisors is an integer number (8386182).

Almost surely, 2^82512742 is an apocalyptic number.

82512742 is a deficient number, since it is larger than the sum of its proper divisors (51666170).

82512742 is a wasteful number, since it uses less digits than its factorization.

82512742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21183.

The product of its digits is 8960, while the sum is 31.

The square root of 82512742 is about 9083.6524592259. The cubic root of 82512742 is about 435.3517953929.

The spelling of 82512742 in words is "eighty-two million, five hundred twelve thousand, seven hundred forty-two".