1156117870 has 8 divisors (see below), whose sum is σ = 2081012184. Its totient is φ = 462447144.

The previous prime is 1156117849. The next prime is 1156117883. The reversal of 1156117870 is 787116511.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57805884 + ... + 57805903.

It is an arithmetic number, because the mean of its divisors is an integer number (260126523).

Almost surely, 2^1156117870 is an apocalyptic number.

1156117870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1156117870 is a deficient number, since it is larger than the sum of its proper divisors (924894314).

1156117870 is a wasteful number, since it uses less digits than its factorization.

1156117870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115611794.

The product of its (nonzero) digits is 11760, while the sum is 37.

The square root of 1156117870 is about 34001.7333381697. The cubic root of 1156117870 is about 1049.5441316627.

The spelling of 1156117870 in words is "one billion, one hundred fifty-six million, one hundred seventeen thousand, eight hundred seventy".