122609157 has 16 divisors (see below), whose sum is σ = 183162432. Its totient is φ = 72299520.

The previous prime is 122609143. The next prime is 122609161. The reversal of 122609157 is 751906221.

It is not a de Polignac number, because 122609157 - 2⁷ = 122609029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122609107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48988 + ... + 51429.

It is an arithmetic number, because the mean of its divisors is an integer number (11447652).

Almost surely, 2^122609157 is an apocalyptic number.

It is an amenable number.

122609157 is a deficient number, since it is larger than the sum of its proper divisors (60553275).

122609157 is a wasteful number, since it uses less digits than its factorization.

122609157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100468.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 122609157 is about 11072.9019231636. The cubic root of 122609157 is about 496.7916665593.

The spelling of 122609157 in words is "one hundred twenty-two million, six hundred nine thousand, one hundred fifty-seven".