122859479 has 4 divisors (see below), whose sum is σ = 126822720. Its totient is φ = 118896240.

The previous prime is 122859467. The next prime is 122859481. The reversal of 122859479 is 974958221.

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

It is a cyclic number.

It is not a de Polignac number, because 122859479 - 2⁴ = 122859463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122859439) 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, 1981574 + ... + 1981635.

It is an arithmetic number, because the mean of its divisors is an integer number (31705680).

Almost surely, 2^122859479 is an apocalyptic number.

122859479 is a deficient number, since it is larger than the sum of its proper divisors (3963241).

122859479 is an equidigital number, since it uses as much as digits as its factorization.

122859479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963240.

The product of its digits is 362880, while the sum is 47.

The square root of 122859479 is about 11084.1995200375. The cubic root of 122859479 is about 497.1295242738.

The spelling of 122859479 in words is "one hundred twenty-two million, eight hundred fifty-nine thousand, four hundred seventy-nine".