1153230251 has 4 divisors (see below), whose sum is σ = 1213926600. Its totient is φ = 1092533904.

The previous prime is 1153230203. The next prime is 1153230257. The reversal of 1153230251 is 1520323511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1153230251 - 2¹⁰ = 1153229227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153230257) 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 3 ways as a sum of consecutive naturals, for example, 30348146 + ... + 30348183.

It is an arithmetic number, because the mean of its divisors is an integer number (303481650).

Almost surely, 2^1153230251 is an apocalyptic number.

1153230251 is a deficient number, since it is larger than the sum of its proper divisors (60696349).

1153230251 is an equidigital number, since it uses as much as digits as its factorization.

1153230251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60696348.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1153230251 is about 33959.2439697941. The cubic root of 1153230251 is about 1048.6695927155.

Adding to 1153230251 its reverse (1520323511), we get a palindrome (2673553762).

The spelling of 1153230251 in words is "one billion, one hundred fifty-three million, two hundred thirty thousand, two hundred fifty-one".