1444872149 has 12 divisors (see below), whose sum is σ = 1706275872. Its totient is φ = 1198505880.

The previous prime is 1444872097. The next prime is 1444872161. The reversal of 1444872149 is 9412784441.

It is a de Polignac number, because none of the positive numbers 2^k-1444872149 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444872049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100667 + ... + 114120.

It is an arithmetic number, because the mean of its divisors is an integer number (142189656).

Almost surely, 2^1444872149 is an apocalyptic number.

It is an amenable number.

1444872149 is a deficient number, since it is larger than the sum of its proper divisors (261403723).

1444872149 is an equidigital number, since it uses as much as digits as its factorization.

1444872149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214856 (or 214825 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 1444872149 is about 38011.4739124912. The cubic root of 1444872149 is about 1130.5153753724.

The spelling of 1444872149 in words is "one billion, four hundred forty-four million, eight hundred seventy-two thousand, one hundred forty-nine".