1255624151 has 4 divisors (see below), whose sum is σ = 1255711632. Its totient is φ = 1255536672.

The previous prime is 1255624141. The next prime is 1255624157. The reversal of 1255624151 is 1514265521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1255624151 - 2⁶ = 1255624087 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 (1255624157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16595 + ... + 52788.

It is an arithmetic number, because the mean of its divisors is an integer number (313927908).

Almost surely, 2^1255624151 is an apocalyptic number.

1255624151 is a deficient number, since it is larger than the sum of its proper divisors (87481).

1255624151 is an equidigital number, since it uses as much as digits as its factorization.

1255624151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87480.

The product of its digits is 12000, while the sum is 32.

The square root of 1255624151 is about 35434.7873000530. The cubic root of 1255624151 is about 1078.8305101825.

Adding to 1255624151 its reverse (1514265521), we get a palindrome (2769889672).

The spelling of 1255624151 in words is "one billion, two hundred fifty-five million, six hundred twenty-four thousand, one hundred fifty-one".