1144322451 has 16 divisors (see below), whose sum is σ = 1708646400. Its totient is φ = 756872424.

The previous prime is 1144322449. The next prime is 1144322453. The reversal of 1144322451 is 1542234411.

It is an interprime number because it is at equal distance from previous prime (1144322449) and next prime (1144322453).

It is not a de Polignac number, because 1144322451 - 2¹ = 1144322449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1144322453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163431 + ... + 170288.

It is an arithmetic number, because the mean of its divisors is an integer number (106790400).

Almost surely, 2^1144322451 is an apocalyptic number.

1144322451 is a deficient number, since it is larger than the sum of its proper divisors (564323949).

1144322451 is a wasteful number, since it uses less digits than its factorization.

1144322451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333855 (or 333849 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1144322451 is about 33827.8354465668. The cubic root of 1144322451 is about 1045.9625605211.

Adding to 1144322451 its reverse (1542234411), we get a palindrome (2686556862).

The spelling of 1144322451 in words is "one billion, one hundred forty-four million, three hundred twenty-two thousand, four hundred fifty-one".