122379129 has 12 divisors (see below), whose sum is σ = 177430500. Its totient is φ = 81281184.

The previous prime is 122379119. The next prime is 122379143. The reversal of 122379129 is 921973221.

It can be written as a sum of positive squares in 2 ways, for example, as 46949904 + 75429225 = 6852^2 + 8685^2 .

It is not a de Polignac number, because 122379129 - 2⁸ = 122378873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122379093 and 122379102.

It is not an unprimeable number, because it can be changed into a prime (122379119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22854 + ... + 27695.

It is an arithmetic number, because the mean of its divisors is an integer number (14785875).

Almost surely, 2^122379129 is an apocalyptic number.

It is an amenable number.

122379129 is a deficient number, since it is larger than the sum of its proper divisors (55051371).

122379129 is a wasteful number, since it uses less digits than its factorization.

122379129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50824 (or 50821 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 122379129 is about 11062.5100677920. The cubic root of 122379129 is about 496.4807938220.

The spelling of 122379129 in words is "one hundred twenty-two million, three hundred seventy-nine thousand, one hundred twenty-nine".