122672939 has 4 divisors (see below), whose sum is σ = 122714160. Its totient is φ = 122631720.

The previous prime is 122672887. The next prime is 122672941. The reversal of 122672939 is 939276221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939276221 = 13 ⋅72252017.

It is a cyclic number.

It is not a de Polignac number, because 122672939 - 2¹⁶ = 122607403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122672896 and 122672905.

It is not an unprimeable number, because it can be changed into a prime (122672959) 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, 15767 + ... + 22224.

It is an arithmetic number, because the mean of its divisors is an integer number (30678540).

Almost surely, 2^122672939 is an apocalyptic number.

122672939 is a deficient number, since it is larger than the sum of its proper divisors (41221).

122672939 is an equidigital number, since it uses as much as digits as its factorization.

122672939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41220.

The product of its digits is 81648, while the sum is 41.

The square root of 122672939 is about 11075.7816428458. The cubic root of 122672939 is about 496.8777962687.

The spelling of 122672939 in words is "one hundred twenty-two million, six hundred seventy-two thousand, nine hundred thirty-nine".