1115956131 has 8 divisors (see below), whose sum is σ = 1488286800. Its totient is φ = 743798112.

The previous prime is 1115956099. The next prime is 1115956151. The reversal of 1115956131 is 1316595111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1115956131 - 2⁵ = 1115956099 is a prime.

It is a super-2 number, since 2×1115956131² = 2490716172632978322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1115956092 and 1115956101.

It is not an unprimeable number, because it can be changed into a prime (1115956151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27240 + ... + 54533.

It is an arithmetic number, because the mean of its divisors is an integer number (186035850).

Almost surely, 2^1115956131 is an apocalyptic number.

1115956131 is a deficient number, since it is larger than the sum of its proper divisors (372330669).

1115956131 is an equidigital number, since it uses as much as digits as its factorization.

1115956131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86325.

The product of its digits is 4050, while the sum is 33.

The square root of 1115956131 is about 33405.9295784446. The cubic root of 1115956131 is about 1037.2474460704.

The spelling of 1115956131 in words is "one billion, one hundred fifteen million, nine hundred fifty-six thousand, one hundred thirty-one".