1156834431 has 12 divisors (see below), whose sum is σ = 1693874208. Its totient is φ = 760657824.

The previous prime is 1156834429. The next prime is 1156834433. The reversal of 1156834431 is 1344386511.

It is an interprime number because it is at equal distance from previous prime (1156834429) and next prime (1156834433).

It is not a de Polignac number, because 1156834431 - 2¹ = 1156834429 is a prime.

It is a super-2 number, since 2×1156834431² = 2676531801494187522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156834433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 879735 + ... + 881048.

It is an arithmetic number, because the mean of its divisors is an integer number (141156184).

Almost surely, 2^1156834431 is an apocalyptic number.

1156834431 is a deficient number, since it is larger than the sum of its proper divisors (537039777).

1156834431 is a wasteful number, since it uses less digits than its factorization.

1156834431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760862 (or 1760859 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 1156834431 is about 34012.2688305264. The cubic root of 1156834431 is about 1049.7609224386.

The spelling of 1156834431 in words is "one billion, one hundred fifty-six million, eight hundred thirty-four thousand, four hundred thirty-one".