1144972623 has 16 divisors (see below), whose sum is σ = 1633328000. Its totient is φ = 711283680.

The previous prime is 1144972603. The next prime is 1144972643. The reversal of 1144972623 is 3262794411.

It is an interprime number because it is at equal distance from previous prime (1144972603) and next prime (1144972643).

It is not a de Polignac number, because 1144972623 - 2⁹ = 1144972111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144972603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161173 + ... + 168126.

It is an arithmetic number, because the mean of its divisors is an integer number (102083000).

Almost surely, 2^1144972623 is an apocalyptic number.

1144972623 is a deficient number, since it is larger than the sum of its proper divisors (488355377).

1144972623 is a wasteful number, since it uses less digits than its factorization.

1144972623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329382.

The product of its digits is 72576, while the sum is 39.

The square root of 1144972623 is about 33837.4440967399. Note that the first 3 decimals coincide. The cubic root of 1144972623 is about 1046.1606185696.

The spelling of 1144972623 in words is "one billion, one hundred forty-four million, nine hundred seventy-two thousand, six hundred twenty-three".