122823506 has 8 divisors (see below), whose sum is σ = 198407244. Its totient is φ = 56687760.

The previous prime is 122823499. The next prime is 122823509. The reversal of 122823506 is 605328221.

It can be written as a sum of positive squares in 2 ways, for example, as 121110025 + 1713481 = 11005^2 + 1309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×122823506² = 30171227252264072, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122823509) 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, 2361965 + ... + 2362016.

Almost surely, 2^122823506 is an apocalyptic number.

122823506 is a deficient number, since it is larger than the sum of its proper divisors (75583738).

122823506 is a wasteful number, since it uses less digits than its factorization.

122823506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4723996.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 122823506 is about 11082.5766859517. The cubic root of 122823506 is about 497.0810000405.

The spelling of 122823506 in words is "one hundred twenty-two million, eight hundred twenty-three thousand, five hundred six".