122345679 has 4 divisors (see below), whose sum is σ = 163127576. Its totient is φ = 81563784.

The previous prime is 122345669. The next prime is 122345761. The reversal of 122345679 is 976543221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 976543221 = 3 ⋅325514407.

It is not a de Polignac number, because 122345679 - 2⁵ = 122345647 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122345609) 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, 20390944 + ... + 20390949.

It is an arithmetic number, because the mean of its divisors is an integer number (40781894).

Almost surely, 2^122345679 is an apocalyptic number.

122345679 is a deficient number, since it is larger than the sum of its proper divisors (40781897).

122345679 is an equidigital number, since it uses as much as digits as its factorization.

122345679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40781896.

The product of its digits is 90720, while the sum is 39.

The square root of 122345679 is about 11060.9981014373. The cubic root of 122345679 is about 496.4355551826.

The spelling of 122345679 in words is "one hundred twenty-two million, three hundred forty-five thousand, six hundred seventy-nine".