122130039 has 4 divisors (see below), whose sum is σ = 162840056. Its totient is φ = 81420024.

The previous prime is 122130037. The next prime is 122130067. The reversal of 122130039 is 930031221.

It is a happy number.

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

It is not a de Polignac number, because 122130039 - 2¹ = 122130037 is a prime.

It is a super-2 number, since 2×122130039² = 29831492852283042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122129997 and 122130024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122130037) 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 3 ways as a sum of consecutive naturals, for example, 20355004 + ... + 20355009.

It is an arithmetic number, because the mean of its divisors is an integer number (40710014).

Almost surely, 2^122130039 is an apocalyptic number.

122130039 is a deficient number, since it is larger than the sum of its proper divisors (40710017).

122130039 is an equidigital number, since it uses as much as digits as its factorization.

122130039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40710016.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 122130039 is about 11051.2460383434. The cubic root of 122130039 is about 496.1437200043.

The spelling of 122130039 in words is "one hundred twenty-two million, one hundred thirty thousand, thirty-nine".