1137431233 has 2 divisors, whose sum is σ = 1137431234. Its totient is φ = 1137431232.

The previous prime is 1137431221. The next prime is 1137431249. The reversal of 1137431233 is 3321347311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 947900944 + 189530289 = 30788^2 + 13767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137431233 - 2⁵ = 1137431201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1137431203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568715616 + 568715617.

It is an arithmetic number, because the mean of its divisors is an integer number (568715617).

Almost surely, 2^1137431233 is an apocalyptic number.

It is an amenable number.

1137431233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137431233 is an equidigital number, since it uses as much as digits as its factorization.

1137431233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 1137431233 is about 33725.8244228366. The cubic root of 1137431233 is about 1043.8587031633.

Adding to 1137431233 its reverse (3321347311), we get a palindrome (4458778544).

The spelling of 1137431233 in words is "one billion, one hundred thirty-seven million, four hundred thirty-one thousand, two hundred thirty-three".