122804823 has 4 divisors (see below), whose sum is σ = 163739768. Its totient is φ = 81869880.

The previous prime is 122804819. The next prime is 122804831. The reversal of 122804823 is 328408221.

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

It is not a de Polignac number, because 122804823 - 2² = 122804819 is a prime.

It is a super-2 number, since 2×122804823² = 30162049104122658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122804833) 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, 20467468 + ... + 20467473.

It is an arithmetic number, because the mean of its divisors is an integer number (40934942).

Almost surely, 2^122804823 is an apocalyptic number.

122804823 is a deficient number, since it is larger than the sum of its proper divisors (40934945).

122804823 is an equidigital number, since it uses as much as digits as its factorization.

122804823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40934944.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 122804823 is about 11081.7337542462. The cubic root of 122804823 is about 497.0557946718.

The spelling of 122804823 in words is "one hundred twenty-two million, eight hundred four thousand, eight hundred twenty-three".