1156679381 has 8 divisors (see below), whose sum is σ = 1358896224. Its totient is φ = 970639920.

The previous prime is 1156679327. The next prime is 1156679387. The reversal of 1156679381 is 1839766511.

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

It is a cyclic number.

It is not a de Polignac number, because 1156679381 - 2¹⁸ = 1156417237 is a prime.

It is a super-2 number, since 2×1156679381² = 2675814380861086322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156679387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4044191 + ... + 4044476.

It is an arithmetic number, because the mean of its divisors is an integer number (169862028).

Almost surely, 2^1156679381 is an apocalyptic number.

1156679381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1156679381 is a deficient number, since it is larger than the sum of its proper divisors (202216843).

1156679381 is a wasteful number, since it uses less digits than its factorization.

1156679381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088691.

The product of its digits is 272160, while the sum is 47.

The square root of 1156679381 is about 34009.9894295779. The cubic root of 1156679381 is about 1049.7140206813.

The spelling of 1156679381 in words is "one billion, one hundred fifty-six million, six hundred seventy-nine thousand, three hundred eighty-one".