1255434311 has 16 divisors (see below), whose sum is σ = 1309448448. Its totient is φ = 1202342400.

The previous prime is 1255434307. The next prime is 1255434319. The reversal of 1255434311 is 1134345521.

It is a cyclic number.

It is not a de Polignac number, because 1255434311 - 2² = 1255434307 is a prime.

It is a super-2 number, since 2×1255434311² = 3152230618472089442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255434319) 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, 1471361 + ... + 1472213.

It is an arithmetic number, because the mean of its divisors is an integer number (81840528).

Almost surely, 2^1255434311 is an apocalyptic number.

1255434311 is a deficient number, since it is larger than the sum of its proper divisors (54014137).

1255434311 is a wasteful number, since it uses less digits than its factorization.

1255434311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322.

The product of its digits is 7200, while the sum is 29.

The square root of 1255434311 is about 35432.1084752234. The cubic root of 1255434311 is about 1078.7761373549.

Adding to 1255434311 its reverse (1134345521), we get a palindrome (2389779832).

The spelling of 1255434311 in words is "one billion, two hundred fifty-five million, four hundred thirty-four thousand, three hundred eleven".