122601157 has 4 divisors (see below), whose sum is σ = 140115616. Its totient is φ = 105086700.

The previous prime is 122601133. The next prime is 122601169. The reversal of 122601157 is 751106221.

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 122601157 - 2¹⁹ = 122076869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122601107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8757219 + ... + 8757232.

It is an arithmetic number, because the mean of its divisors is an integer number (35028904).

Almost surely, 2^122601157 is an apocalyptic number.

It is an amenable number.

122601157 is a deficient number, since it is larger than the sum of its proper divisors (17514459).

122601157 is an equidigital number, since it uses as much as digits as its factorization.

122601157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17514458.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 122601157 is about 11072.5406750212. The cubic root of 122601157 is about 496.7808614398.

Adding to 122601157 its reverse (751106221), we get a palindrome (873707378).

The spelling of 122601157 in words is "one hundred twenty-two million, six hundred one thousand, one hundred fifty-seven".