82390153 has 4 divisors (see below), whose sum is σ = 82574100. Its totient is φ = 82206208.

The previous prime is 82390129. The next prime is 82390159. The reversal of 82390153 is 35109328.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64850809 + 17539344 = 8053^2 + 4188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82390153 is a prime.

It is a super-2 number, since 2×82390153² = 13576274622726818, which contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 91300 + ... + 92197.

It is an arithmetic number, because the mean of its divisors is an integer number (20643525).

Almost surely, 2^82390153 is an apocalyptic number.

It is an amenable number.

82390153 is a deficient number, since it is larger than the sum of its proper divisors (183947).

82390153 is a wasteful number, since it uses less digits than its factorization.

82390153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183946.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 82390153 is about 9076.9021697934. The cubic root of 82390153 is about 435.1360881295.

The spelling of 82390153 in words is "eighty-two million, three hundred ninety thousand, one hundred fifty-three".