1163431269 has 96 divisors (see below), whose sum is σ = 2340409344. Its totient is φ = 557772480.

The previous prime is 1163431253. The next prime is 1163431273. The reversal of 1163431269 is 9621343611.

1163431269 is a `hidden beast` number, since 1 + 1 + 634 + 3 + 12 + 6 + 9 = 666.

It is not a de Polignac number, because 1163431269 - 2⁴ = 1163431253 is a prime.

It is a super-2 number, since 2×1163431269² = 2707144635373900722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163431469) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 240852 + ... + 245634.

It is an arithmetic number, because the mean of its divisors is an integer number (24379264).

Almost surely, 2^1163431269 is an apocalyptic number.

It is an amenable number.

1163431269 is an abundant number, since it is smaller than the sum of its proper divisors (1176978075).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1163431269 is a wasteful number, since it uses less digits than its factorization.

1163431269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829 (or 4817 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1163431269 is about 34109.1082996903. The cubic root of 1163431269 is about 1051.7525588843.

The spelling of 1163431269 in words is "one billion, one hundred sixty-three million, four hundred thirty-one thousand, two hundred sixty-nine".