1144210931 has 2 divisors, whose sum is σ = 1144210932. Its totient is φ = 1144210930.

The previous prime is 1144210919. The next prime is 1144210939. The reversal of 1144210931 is 1390124411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144210931 is a prime.

It is a super-2 number, since 2×1144210931² = 2618437309239773522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1144210931.

It is not a weakly prime, because it can be changed into another prime (1144210939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572105465 + 572105466.

It is an arithmetic number, because the mean of its divisors is an integer number (572105466).

Almost surely, 2^1144210931 is an apocalyptic number.

1144210931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144210931 is an equidigital number, since it uses as much as digits as its factorization.

1144210931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1144210931 is about 33826.1870597323. The cubic root of 1144210931 is about 1045.9285813066.

The spelling of 1144210931 in words is "one billion, one hundred forty-four million, two hundred ten thousand, nine hundred thirty-one".