1144232313 has 32 divisors (see below), whose sum is σ = 1821782016. Its totient is φ = 624600768.

The previous prime is 1144232263. The next prime is 1144232329. The reversal of 1144232313 is 3132324411.

It is a happy number.

It is not a de Polignac number, because 1144232313 - 2⁸ = 1144232057 is a prime.

It is a super-2 number, since 2×1144232313² = 2618535172226659938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1144232393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659395 + ... + 661127.

It is an arithmetic number, because the mean of its divisors is an integer number (56930688).

Almost surely, 2^1144232313 is an apocalyptic number.

It is an amenable number.

1144232313 is a deficient number, since it is larger than the sum of its proper divisors (677549703).

1144232313 is a wasteful number, since it uses less digits than its factorization.

1144232313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its digits is 1728, while the sum is 24.

The square root of 1144232313 is about 33826.5031151610. The cubic root of 1144232313 is about 1045.9350963949.

Adding to 1144232313 its reverse (3132324411), we get a palindrome (4276556724).

The spelling of 1144232313 in words is "one billion, one hundred forty-four million, two hundred thirty-two thousand, three hundred thirteen".