1153544251 has 2 divisors, whose sum is σ = 1153544252. Its totient is φ = 1153544250.

The previous prime is 1153544239. The next prime is 1153544303. The reversal of 1153544251 is 1524453511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153544251 - 2⁷ = 1153544123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1153541251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576772125 + 576772126.

It is an arithmetic number, because the mean of its divisors is an integer number (576772126).

Almost surely, 2^1153544251 is an apocalyptic number.

1153544251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153544251 is an equidigital number, since it uses as much as digits as its factorization.

1153544251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 31.

The square root of 1153544251 is about 33963.8668440447. The cubic root of 1153544251 is about 1048.7647608663.

Adding to 1153544251 its reverse (1524453511), we get a palindrome (2677997762).

The spelling of 1153544251 in words is "one billion, one hundred fifty-three million, five hundred forty-four thousand, two hundred fifty-one".