1131478715 has 16 divisors (see below), whose sum is σ = 1387222848. Its totient is φ = 885645696.

The previous prime is 1131478697. The next prime is 1131478727. The reversal of 1131478715 is 5178741311.

It is a cyclic number.

It is not a de Polignac number, because 1131478715 - 2²⁴ = 1114701499 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93122 + ... + 104568.

It is an arithmetic number, because the mean of its divisors is an integer number (86701428).

Almost surely, 2^1131478715 is an apocalyptic number.

1131478715 is a deficient number, since it is larger than the sum of its proper divisors (255744133).

1131478715 is a wasteful number, since it uses less digits than its factorization.

1131478715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11878.

The product of its digits is 23520, while the sum is 38.

The square root of 1131478715 is about 33637.4599962601. The cubic root of 1131478715 is about 1042.0345757343.

The spelling of 1131478715 in words is "one billion, one hundred thirty-one million, four hundred seventy-eight thousand, seven hundred fifteen".