122646637 has 4 divisors (see below), whose sum is σ = 123381216. Its totient is φ = 121912060.

The previous prime is 122646617. The next prime is 122646659. The reversal of 122646637 is 736646221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 736646221 = 41 ⋅17966981.

It is a cyclic number.

It is not a de Polignac number, because 122646637 - 2¹⁹ = 122122349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122646596 and 122646605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122646617) 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, 367039 + ... + 367372.

It is an arithmetic number, because the mean of its divisors is an integer number (30845304).

Almost surely, 2^122646637 is an apocalyptic number.

It is an amenable number.

122646637 is a deficient number, since it is larger than the sum of its proper divisors (734579).

122646637 is an equidigital number, since it uses as much as digits as its factorization.

122646637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734578.

The product of its digits is 72576, while the sum is 37.

The square root of 122646637 is about 11074.5942137850. The cubic root of 122646637 is about 496.8422822859.

The spelling of 122646637 in words is "one hundred twenty-two million, six hundred forty-six thousand, six hundred thirty-seven".