122736865 has 8 divisors (see below), whose sum is σ = 155036160. Its totient is φ = 93021552.

The previous prime is 122736863. The next prime is 122736869. The reversal of 122736865 is 568637221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122736865 - 2¹ = 122736863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122736863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645889 + ... + 646078.

It is an arithmetic number, because the mean of its divisors is an integer number (19379520).

Almost surely, 2^122736865 is an apocalyptic number.

It is an amenable number.

122736865 is a deficient number, since it is larger than the sum of its proper divisors (32299295).

122736865 is a wasteful number, since it uses less digits than its factorization.

122736865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291991.

The product of its digits is 120960, while the sum is 40.

The square root of 122736865 is about 11078.6671129699. The cubic root of 122736865 is about 496.9640904817.

The spelling of 122736865 in words is "one hundred twenty-two million, seven hundred thirty-six thousand, eight hundred sixty-five".