122655151 has 4 divisors (see below), whose sum is σ = 123436552. Its totient is φ = 121873752.

The previous prime is 122655139. The next prime is 122655157. The reversal of 122655151 is 151556221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122655151 - 2⁷ = 122655023 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 (122655157) 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, 390465 + ... + 390778.

It is an arithmetic number, because the mean of its divisors is an integer number (30859138).

Almost surely, 2^122655151 is an apocalyptic number.

122655151 is a deficient number, since it is larger than the sum of its proper divisors (781401).

122655151 is an equidigital number, since it uses as much as digits as its factorization.

122655151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781400.

The product of its digits is 3000, while the sum is 28.

The square root of 122655151 is about 11074.9786004308. The cubic root of 122655151 is about 496.8537787754.

The spelling of 122655151 in words is "one hundred twenty-two million, six hundred fifty-five thousand, one hundred fifty-one".