1253626143 has 96 divisors (see below), whose sum is σ = 2222069760. Its totient is φ = 620928000.

The previous prime is 1253626141. The next prime is 1253626163. The reversal of 1253626143 is 3416263521.

1253626143 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1253626143 - 2¹ = 1253626141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253626141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4461163 + ... + 4461443.

It is an arithmetic number, because the mean of its divisors is an integer number (23146560).

Almost surely, 2^1253626143 is an apocalyptic number.

1253626143 is a deficient number, since it is larger than the sum of its proper divisors (968443617).

1253626143 is a wasteful number, since it uses less digits than its factorization.

1253626143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 422 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 1253626143 is about 35406.5833285280. The cubic root of 1253626143 is about 1078.2579778375.

Adding to 1253626143 its reverse (3416263521), we get a palindrome (4669889664).

The spelling of 1253626143 in words is "one billion, two hundred fifty-three million, six hundred twenty-six thousand, one hundred forty-three".