82153290 has 32 divisors (see below), whose sum is σ = 197614080. Its totient is φ = 21857984.

The previous prime is 82153261. The next prime is 82153297. The reversal of 82153290 is 9235128.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (82153297) 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, 11512 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (6175440).

Almost surely, 2^82153290 is an apocalyptic number.

82153290 is an abundant number, since it is smaller than the sum of its proper divisors (115460790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82153290 is a wasteful number, since it uses less digits than its factorization.

82153290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 82153290 is about 9063.8452105053. The cubic root of 82153290 is about 434.7186977696.

The spelling of 82153290 in words is "eighty-two million, one hundred fifty-three thousand, two hundred ninety".