1253143115 has 16 divisors (see below), whose sum is σ = 1719552000. Its totient is φ = 858820320.

The previous prime is 1253143103. The next prime is 1253143139. The reversal of 1253143115 is 5113413521.

It is not a de Polignac number, because 1253143115 - 2¹⁴ = 1253126731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61010 + ... + 78920.

It is an arithmetic number, because the mean of its divisors is an integer number (107472000).

Almost surely, 2^1253143115 is an apocalyptic number.

1253143115 is a deficient number, since it is larger than the sum of its proper divisors (466408885).

1253143115 is a wasteful number, since it uses less digits than its factorization.

1253143115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19922.

The product of its digits is 1800, while the sum is 26.

The square root of 1253143115 is about 35399.7615104961. The cubic root of 1253143115 is about 1078.1194741046.

Adding to 1253143115 its reverse (5113413521), we get a palindrome (6366556636).

The spelling of 1253143115 in words is "one billion, two hundred fifty-three million, one hundred forty-three thousand, one hundred fifteen".