255231122151 has 4 divisors (see below), whose sum is σ = 340308162872. Its totient is φ = 170154081432.

The previous prime is 255231122143. The next prime is 255231122207. The reversal of 255231122151 is 151221132552.

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

It is not a de Polignac number, because 255231122151 - 2³ = 255231122143 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 (255231122051) 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, 42538520356 + ... + 42538520361.

It is an arithmetic number, because the mean of its divisors is an integer number (85077040718).

Almost surely, 2^255231122151 is an apocalyptic number.

255231122151 is a deficient number, since it is larger than the sum of its proper divisors (85077040721).

255231122151 is an equidigital number, since it uses as much as digits as its factorization.

255231122151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85077040720.

The product of its digits is 6000, while the sum is 30.

The spelling of 255231122151 in words is "two hundred fifty-five billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred fifty-one".