1163131405 has 8 divisors (see below), whose sum is σ = 1406748672. Its totient is φ = 923177808.

The previous prime is 1163131349. The next prime is 1163131421. The reversal of 1163131405 is 5041313611.

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 1163131405 - 2⁹ = 1163130893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1163131405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915217 + ... + 916486.

It is an arithmetic number, because the mean of its divisors is an integer number (175843584).

Almost surely, 2^1163131405 is an apocalyptic number.

It is an amenable number.

1163131405 is a deficient number, since it is larger than the sum of its proper divisors (243617267).

1163131405 is a wasteful number, since it uses less digits than its factorization.

1163131405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831835.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1163131405 is about 34104.7123576787. The cubic root of 1163131405 is about 1051.6621911828.

The spelling of 1163131405 in words is "one billion, one hundred sixty-three million, one hundred thirty-one thousand, four hundred five".