82390154 has 32 divisors (see below), whose sum is σ = 157372416. Its totient is φ = 31414320.

The previous prime is 82390129. The next prime is 82390159. The reversal of 82390154 is 45109328.

It is a super-2 number, since 2×82390154² = 13576274952287432, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82390154.

It is not an unprimeable number, because it can be changed into a prime (82390159) 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, 1547 + ... + 12929.

It is an arithmetic number, because the mean of its divisors is an integer number (4917888).

Almost surely, 2^82390154 is an apocalyptic number.

82390154 is a deficient number, since it is larger than the sum of its proper divisors (74982262).

82390154 is a wasteful number, since it uses less digits than its factorization.

82390154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11450.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 82390154 is about 9076.9022248783. The cubic root of 82390154 is about 435.1360898900.

The spelling of 82390154 in words is "eighty-two million, three hundred ninety thousand, one hundred fifty-four".