1253431275 has 12 divisors (see below), whose sum is σ = 2072339832. Its totient is φ = 668496640.

The previous prime is 1253431247. The next prime is 1253431279. The reversal of 1253431275 is 5721343521.

It is not a de Polignac number, because 1253431275 - 2⁸ = 1253431019 is a prime.

It is a super-2 number, since 2×1253431275² = 3142179922296251250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1253431279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8356134 + ... + 8356283.

It is an arithmetic number, because the mean of its divisors is an integer number (172694986).

Almost surely, 2^1253431275 is an apocalyptic number.

1253431275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1253431275 is a deficient number, since it is larger than the sum of its proper divisors (818908557).

1253431275 is a wasteful number, since it uses less digits than its factorization.

1253431275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16712430 (or 16712425 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 1253431275 is about 35403.8313604615. The cubic root of 1253431275 is about 1078.2021055545.

Adding to 1253431275 its reverse (5721343521), we get a palindrome (6974774796).

The spelling of 1253431275 in words is "one billion, two hundred fifty-three million, four hundred thirty-one thousand, two hundred seventy-five".