1144664031 has 8 divisors (see below), whose sum is σ = 1744249984. Its totient is φ = 654093720.

The previous prime is 1144664021. The next prime is 1144664033. The reversal of 1144664031 is 1304664411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1144664031 - 2¹⁸ = 1144401887 is a prime.

It is a super-2 number, since 2×1144664031² = 2620511487730337922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144664031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144664033) 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, 27253885 + ... + 27253926.

It is an arithmetic number, because the mean of its divisors is an integer number (218031248).

Almost surely, 2^1144664031 is an apocalyptic number.

1144664031 is a deficient number, since it is larger than the sum of its proper divisors (599585953).

1144664031 is an equidigital number, since it uses as much as digits as its factorization.

1144664031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54507821.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1144664031 is about 33832.8838705777. The cubic root of 1144664031 is about 1046.0666233657.

The spelling of 1144664031 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, thirty-one".