1311587134 has 16 divisors (see below), whose sum is σ = 2311328880. Its totient is φ = 550316160.

The previous prime is 1311587117. The next prime is 1311587177. The reversal of 1311587134 is 4317851131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311587134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2292699 + ... + 2293270.

It is an arithmetic number, because the mean of its divisors is an integer number (144458055).

Almost surely, 2^1311587134 is an apocalyptic number.

1311587134 is a deficient number, since it is larger than the sum of its proper divisors (999741746).

1311587134 is a wasteful number, since it uses less digits than its factorization.

1311587134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585995.

The product of its digits is 10080, while the sum is 34.

The square root of 1311587134 is about 36215.8409263129. The cubic root of 1311587134 is about 1094.6258902831.

The spelling of 1311587134 in words is "one billion, three hundred eleven million, five hundred eighty-seven thousand, one hundred thirty-four".