1153244231 has 6 divisors (see below), whose sum is σ = 1185256800. Its totient is φ = 1122074136.

The previous prime is 1153244207. The next prime is 1153244251. The reversal of 1153244231 is 1324423511.

It is a happy number.

It is not a de Polignac number, because 1153244231 - 2⁶ = 1153244167 is a prime.

It is a super-2 number, since 2×1153244231² = 2659944512669562722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1153244231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153244251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 419831 + ... + 422568.

It is an arithmetic number, because the mean of its divisors is an integer number (197542800).

Almost surely, 2^1153244231 is an apocalyptic number.

1153244231 is a deficient number, since it is larger than the sum of its proper divisors (32012569).

1153244231 is an frugal number, since it uses more digits than its factorization.

1153244231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842473 (or 842436 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 1153244231 is about 33959.4498041414. The cubic root of 1153244231 is about 1048.6738301872.

Adding to 1153244231 its reverse (1324423511), we get a palindrome (2477667742).

The spelling of 1153244231 in words is "one billion, one hundred fifty-three million, two hundred forty-four thousand, two hundred thirty-one".