1144452621 has 24 divisors (see below), whose sum is σ = 1675670976. Its totient is φ = 694337280.

The previous prime is 1144452613. The next prime is 1144452629. The reversal of 1144452621 is 1262544411.

It is an interprime number because it is at equal distance from previous prime (1144452613) and next prime (1144452629).

It is not a de Polignac number, because 1144452621 - 2³ = 1144452613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144452629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20101 + ... + 51893.

It is an arithmetic number, because the mean of its divisors is an integer number (69819624).

Almost surely, 2^1144452621 is an apocalyptic number.

It is an amenable number.

1144452621 is a deficient number, since it is larger than the sum of its proper divisors (531218355).

1144452621 is a wasteful number, since it uses less digits than its factorization.

1144452621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31893 (or 31880 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 1144452621 is about 33829.7593990853. The cubic root of 1144452621 is about 1046.0022194431.

The spelling of 1144452621 in words is "one billion, one hundred forty-four million, four hundred fifty-two thousand, six hundred twenty-one".