1255123151 has 2 divisors, whose sum is σ = 1255123152. Its totient is φ = 1255123150.

The previous prime is 1255123099. The next prime is 1255123153. The reversal of 1255123151 is 1513215521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1255123151 - 2¹⁸ = 1254861007 is a prime.

Together with 1255123153, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255123151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255123153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627561575 + 627561576.

It is an arithmetic number, because the mean of its divisors is an integer number (627561576).

Almost surely, 2^1255123151 is an apocalyptic number.

1255123151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255123151 is an equidigital number, since it uses as much as digits as its factorization.

1255123151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1500, while the sum is 26.

The square root of 1255123151 is about 35427.7172705214. The cubic root of 1255123151 is about 1078.6870049285.

Adding to 1255123151 its reverse (1513215521), we get a palindrome (2768338672).

The spelling of 1255123151 in words is "one billion, two hundred fifty-five million, one hundred twenty-three thousand, one hundred fifty-one".