1131739815 has 16 divisors (see below), whose sum is σ = 1815647328. Its totient is φ = 601973376.

The previous prime is 1131739801. The next prime is 1131739823. The reversal of 1131739815 is 5189371311.

It is not a de Polignac number, because 1131739815 - 2⁵ = 1131739783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95544 + ... + 106733.

It is an arithmetic number, because the mean of its divisors is an integer number (113477958).

Almost surely, 2^1131739815 is an apocalyptic number.

1131739815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1131739815 is a deficient number, since it is larger than the sum of its proper divisors (683907513).

1131739815 is a wasteful number, since it uses less digits than its factorization.

1131739815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202658.

The product of its digits is 22680, while the sum is 39.

The square root of 1131739815 is about 33641.3408621000. The cubic root of 1131739815 is about 1042.1147228606.

The spelling of 1131739815 in words is "one billion, one hundred thirty-one million, seven hundred thirty-nine thousand, eight hundred fifteen".