122256153 has 6 divisors (see below), whose sum is σ = 176592234. Its totient is φ = 81504096.

The previous prime is 122256151. The next prime is 122256179. The reversal of 122256153 is 351652221.

It is a happy number.

122256153 is a `hidden beast` number, since 1 + 22 + 25 + 615 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103489929 + 18766224 = 10173^2 + 4332^2 .

It is not a de Polignac number, because 122256153 - 2¹ = 122256151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122256151) 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, 6792000 + ... + 6792017.

It is an arithmetic number, because the mean of its divisors is an integer number (29432039).

Almost surely, 2^122256153 is an apocalyptic number.

It is an amenable number.

122256153 is a deficient number, since it is larger than the sum of its proper divisors (54336081).

122256153 is a wasteful number, since it uses less digits than its factorization.

122256153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13584023 (or 13584020 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 122256153 is about 11056.9504385251. The cubic root of 122256153 is about 496.3144373389.

It can be divided in two parts, 1222 and 56153, that added together give a palindrome (57375).

The spelling of 122256153 in words is "one hundred twenty-two million, two hundred fifty-six thousand, one hundred fifty-three".