82315402 has 16 divisors (see below), whose sum is σ = 133128072. Its totient is φ = 37946880.

The previous prime is 82315399. The next prime is 82315403. The reversal of 82315402 is 20451328.

It can be written as a sum of positive squares in 4 ways, for example, as 66243321 + 16072081 = 8139^2 + 4009^2 .

It is not an unprimeable number, because it can be changed into a prime (82315403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32502 + ... + 34942.

Almost surely, 2^82315402 is an apocalyptic number.

82315402 is a deficient number, since it is larger than the sum of its proper divisors (50812670).

82315402 is a wasteful number, since it uses less digits than its factorization.

82315402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 82315402 is about 9072.7835860887. The cubic root of 82315402 is about 435.0044514452.

The spelling of 82315402 in words is "eighty-two million, three hundred fifteen thousand, four hundred two".