1144939473 has 12 divisors (see below), whose sum is σ = 1694138628. Its totient is φ = 744675840.

The previous prime is 1144939447. The next prime is 1144939489. The reversal of 1144939473 is 3749394411.

1144939473 is a `hidden beast` number, since 1 + 1 + 4 + 493 + 94 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 218832849 + 926106624 = 14793^2 + 30432^2 .

It is not a de Polignac number, because 1144939473 - 2²¹ = 1142842321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144934473) 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, 1551040 + ... + 1551777.

It is an arithmetic number, because the mean of its divisors is an integer number (141178219).

Almost surely, 2^1144939473 is an apocalyptic number.

It is an amenable number.

1144939473 is a deficient number, since it is larger than the sum of its proper divisors (549199155).

1144939473 is a wasteful number, since it uses less digits than its factorization.

1144939473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102864 (or 3102861 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 1144939473 is about 33836.9542512325. The cubic root of 1144939473 is about 1046.1505220955.

The spelling of 1144939473 in words is "one billion, one hundred forty-four million, nine hundred thirty-nine thousand, four hundred seventy-three".