122624261 has 4 divisors (see below), whose sum is σ = 125476032. Its totient is φ = 119772492.

The previous prime is 122624239. The next prime is 122624263. The reversal of 122624261 is 162426221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122624261 - 2⁶ = 122624197 is a prime.

It is a super-2 number, since 2×122624261² = 30073418771592242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122624261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122624263) 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 3 ways as a sum of consecutive naturals, for example, 1425821 + ... + 1425906.

It is an arithmetic number, because the mean of its divisors is an integer number (31369008).

Almost surely, 2^122624261 is an apocalyptic number.

It is an amenable number.

122624261 is a deficient number, since it is larger than the sum of its proper divisors (2851771).

122624261 is an equidigital number, since it uses as much as digits as its factorization.

122624261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851770.

The product of its digits is 2304, while the sum is 26.

The square root of 122624261 is about 11073.5839275277. The cubic root of 122624261 is about 496.8120653436.

The spelling of 122624261 in words is "one hundred twenty-two million, six hundred twenty-four thousand, two hundred sixty-one".