122651153 has 4 divisors (see below), whose sum is σ = 125260800. Its totient is φ = 120041508.

The previous prime is 122651149. The next prime is 122651171. The reversal of 122651153 is 351156221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 351156221 = 13 ⋅27012017.

It is a cyclic number.

It is not a de Polignac number, because 122651153 - 2² = 122651149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122651183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304753 + ... + 1304846.

It is an arithmetic number, because the mean of its divisors is an integer number (31315200).

Almost surely, 2^122651153 is an apocalyptic number.

It is an amenable number.

122651153 is a deficient number, since it is larger than the sum of its proper divisors (2609647).

122651153 is an equidigital number, since it uses as much as digits as its factorization.

122651153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609646.

The product of its digits is 1800, while the sum is 26.

The square root of 122651153 is about 11074.7981019972. The cubic root of 122651153 is about 496.8483803257.

The spelling of 122651153 in words is "one hundred twenty-two million, six hundred fifty-one thousand, one hundred fifty-three".