1159431 has 32 divisors (see below), whose sum is σ = 1978368. Its totient is φ = 587520.

The previous prime is 1159429. The next prime is 1159447. The reversal of 1159431 is 1349511.

It is not a de Polignac number, because 1159431 - 2¹ = 1159429 is a prime.

It is a super-2 number, since 2×1159431² = 2688560487522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8395 + ... + 8531.

It is an arithmetic number, because the mean of its divisors is an integer number (61824).

2^1159431 is an apocalyptic number.

1159431 is a deficient number, since it is larger than the sum of its proper divisors (818937).

1159431 is a wasteful number, since it uses less digits than its factorization.

1159431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191.

The product of its digits is 540, while the sum is 24.

The square root of 1159431 is about 1076.7687774077. The cubic root of 1159431 is about 105.0545748039.

The spelling of 1159431 in words is "one million, one hundred fifty-nine thousand, four hundred thirty-one".