1144949437 has 2 divisors, whose sum is σ = 1144949438. Its totient is φ = 1144949436.

The previous prime is 1144949431. The next prime is 1144949461. The reversal of 1144949437 is 7349494411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1140480441 + 4468996 = 33771^2 + 2114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144949437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144949431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572474718 + 572474719.

It is an arithmetic number, because the mean of its divisors is an integer number (572474719).

Almost surely, 2^1144949437 is an apocalyptic number.

It is an amenable number.

1144949437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144949437 is an equidigital number, since it uses as much as digits as its factorization.

1144949437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 46.

The square root of 1144949437 is about 33837.1014863862. The cubic root of 1144949437 is about 1046.1535568451.

The spelling of 1144949437 in words is "one billion, one hundred forty-four million, nine hundred forty-nine thousand, four hundred thirty-seven".