1144575971 has 16 divisors (see below), whose sum is σ = 1432581120. Its totient is φ = 888391680.

The previous prime is 1144575961. The next prime is 1144575989. The reversal of 1144575971 is 1795754411.

It is not a de Polignac number, because 1144575971 - 2¹⁰ = 1144574947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144575931) 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, 9131 + ... + 48708.

It is an arithmetic number, because the mean of its divisors is an integer number (89536320).

Almost surely, 2^1144575971 is an apocalyptic number.

1144575971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1144575971 is a deficient number, since it is larger than the sum of its proper divisors (288005149).

1144575971 is a wasteful number, since it uses less digits than its factorization.

1144575971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58114.

The product of its digits is 176400, while the sum is 44.

The square root of 1144575971 is about 33831.5824489485. The cubic root of 1144575971 is about 1046.0397977392.

The spelling of 1144575971 in words is "one billion, one hundred forty-four million, five hundred seventy-five thousand, nine hundred seventy-one".