1255346931 has 16 divisors (see below), whose sum is σ = 1688531328. Its totient is φ = 829545600.

The previous prime is 1255346881. The next prime is 1255346933. The reversal of 1255346931 is 1396435521.

It is not a de Polignac number, because 1255346931 - 2⁷ = 1255346803 is a prime.

It is a super-2 number, since 2×1255346931² = 3151791834342237522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1255346931.

It is not an unprimeable number, because it can be changed into a prime (1255346933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533700 + ... + 536046.

It is an arithmetic number, because the mean of its divisors is an integer number (105533208).

Almost surely, 2^1255346931 is an apocalyptic number.

1255346931 is a deficient number, since it is larger than the sum of its proper divisors (433184397).

1255346931 is a wasteful number, since it uses less digits than its factorization.

1255346931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842.

The product of its digits is 97200, while the sum is 39.

The square root of 1255346931 is about 35430.8753913871. The cubic root of 1255346931 is about 1078.7511086603.

The spelling of 1255346931 in words is "one billion, two hundred fifty-five million, three hundred forty-six thousand, nine hundred thirty-one".