122724837 has 6 divisors (see below), whose sum is σ = 177269222. Its totient is φ = 81816552.

The previous prime is 122724829. The next prime is 122724851. The reversal of 122724837 is 738427221.

It can be written as a sum of positive squares in only one way, i.e., 65707236 + 57017601 = 8106^2 + 7551^2 .

It is not a de Polignac number, because 122724837 - 2³ = 122724829 is a prime.

It is a super-2 number, since 2×122724837² = 30122771233353138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122724817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6818038 + ... + 6818055.

Almost surely, 2^122724837 is an apocalyptic number.

It is an amenable number.

122724837 is a deficient number, since it is larger than the sum of its proper divisors (54544385).

122724837 is a wasteful number, since it uses less digits than its factorization.

122724837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13636099 (or 13636096 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 122724837 is about 11078.1242545839. The cubic root of 122724837 is about 496.9478560783.

The spelling of 122724837 in words is "one hundred twenty-two million, seven hundred twenty-four thousand, eight hundred thirty-seven".