1161474231 has 8 divisors (see below), whose sum is σ = 1548941040. Its totient is φ = 774161792.

The previous prime is 1161474227. The next prime is 1161474233. The reversal of 1161474231 is 1324741611.

1161474231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 1161474231 - 2² = 1161474227 is a prime.

It is a super-2 number, since 2×1161474231² = 2698044778554082722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161474233) 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, 19716 + ... + 52073.

It is an arithmetic number, because the mean of its divisors is an integer number (193617630).

Almost surely, 2^1161474231 is an apocalyptic number.

1161474231 is a deficient number, since it is larger than the sum of its proper divisors (387466809).

1161474231 is an equidigital number, since it uses as much as digits as its factorization.

1161474231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77185.

The product of its digits is 4032, while the sum is 30.

The square root of 1161474231 is about 34080.4083162159. The cubic root of 1161474231 is about 1051.1625011311.

The spelling of 1161474231 in words is "one billion, one hundred sixty-one million, four hundred seventy-four thousand, two hundred thirty-one".