1311588551 has 12 divisors (see below), whose sum is σ = 1623133872. Its totient is φ = 1037739456.

The previous prime is 1311588541. The next prime is 1311588557. The reversal of 1311588551 is 1558851131.

It is not a de Polignac number, because 1311588551 - 2¹⁴ = 1311572167 is a prime.

It is a super-2 number, since 2×1311588551² = 3440529054228559202, 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 (1311588557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 553166 + ... + 555531.

It is an arithmetic number, because the mean of its divisors is an integer number (135261156).

Almost surely, 2^1311588551 is an apocalyptic number.

1311588551 is a deficient number, since it is larger than the sum of its proper divisors (311545321).

1311588551 is a wasteful number, since it uses less digits than its factorization.

1311588551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108730 (or 1108717 counting only the distinct ones).

The product of its digits is 24000, while the sum is 38.

The square root of 1311588551 is about 36215.8604895700. The cubic root of 1311588551 is about 1094.6262844834.

The spelling of 1311588551 in words is "one billion, three hundred eleven million, five hundred eighty-eight thousand, five hundred fifty-one".