1164126631 has 4 divisors (see below), whose sum is σ = 1168553232. Its totient is φ = 1159700032.

The previous prime is 1164126619. The next prime is 1164126643. The reversal of 1164126631 is 1366214611.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1164126619) and next prime (1164126643).

It is a cyclic number.

It is not a de Polignac number, because 1164126631 - 2¹⁹ = 1163602343 is a prime.

It is a super-2 number, since 2×1164126631² = 2710381626006820322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1164126593 and 1164126602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164126661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212906 + ... + 2213431.

It is an arithmetic number, because the mean of its divisors is an integer number (292138308).

Almost surely, 2^1164126631 is an apocalyptic number.

1164126631 is a deficient number, since it is larger than the sum of its proper divisors (4426601).

1164126631 is an equidigital number, since it uses as much as digits as its factorization.

1164126631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426600.

The product of its digits is 5184, while the sum is 31.

The square root of 1164126631 is about 34119.2999781649. The cubic root of 1164126631 is about 1051.9620550319.

The spelling of 1164126631 in words is "one billion, one hundred sixty-four million, one hundred twenty-six thousand, six hundred thirty-one".