1153142253 has 18 divisors (see below), whose sum is σ = 1697707466. Its totient is φ = 754240032.

The previous prime is 1153142239. The next prime is 1153142279. The reversal of 1153142253 is 3522413511.

It can be written as a sum of positive squares in 3 ways, for example, as 108430569 + 1044711684 = 10413^2 + 32322^2 .

It is not a de Polignac number, because 1153142253 - 2⁶ = 1153142189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153142203) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2475 + ... + 48087.

Almost surely, 2^1153142253 is an apocalyptic number.

It is an amenable number.

1153142253 is a deficient number, since it is larger than the sum of its proper divisors (544565213).

1153142253 is an equidigital number, since it uses as much as digits as its factorization.

1153142253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45725 (or 45669 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1153142253 is about 33957.9483037477. The cubic root of 1153142253 is about 1048.6429188939.

Adding to 1153142253 its reverse (3522413511), we get a palindrome (4675555764).

The spelling of 1153142253 in words is "one billion, one hundred fifty-three million, one hundred forty-two thousand, two hundred fifty-three".