122157153 has 10 divisors (see below), whose sum is σ = 182481794. Its totient is φ = 81438048.

The previous prime is 122157151. The next prime is 122157157. The reversal of 122157153 is 351751221.

It can be written as a sum of positive squares in only one way, i.e., 97476129 + 24681024 = 9873^2 + 4968^2 .

It is not a de Polignac number, because 122157153 - 2¹ = 122157151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122157151) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 753976 + ... + 754137.

Almost surely, 2^122157153 is an apocalyptic number.

It is an amenable number.

122157153 is a deficient number, since it is larger than the sum of its proper divisors (60324641).

122157153 is an equidigital number, since it uses as much as digits as its factorization.

122157153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508125 (or 1508116 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 122157153 is about 11052.4727097605. The cubic root of 122157153 is about 496.1804334548.

The spelling of 122157153 in words is "one hundred twenty-two million, one hundred fifty-seven thousand, one hundred fifty-three".