122616009 has 6 divisors (see below), whose sum is σ = 177112026. Its totient is φ = 81744000.

The previous prime is 122616007. The next prime is 122616023. The reversal of 122616009 is 900616221.

It can be written as a sum of positive squares in only one way, i.e., 105575625 + 17040384 = 10275^2 + 4128^2 .

It is not a de Polignac number, because 122616009 - 2¹ = 122616007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122616007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6811992 + ... + 6812009.

It is an arithmetic number, because the mean of its divisors is an integer number (29518671).

Almost surely, 2^122616009 is an apocalyptic number.

It is an amenable number.

122616009 is a deficient number, since it is larger than the sum of its proper divisors (54496017).

122616009 is a wasteful number, since it uses less digits than its factorization.

122616009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13624007 (or 13624004 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 122616009 is about 11073.2113228277. The cubic root of 122616009 is about 496.8009207705.

The spelling of 122616009 in words is "one hundred twenty-two million, six hundred sixteen thousand, nine".