1253143424 has 32 divisors (see below), whose sum is σ = 2688538440. Its totient is φ = 578373120.

The previous prime is 1253143399. The next prime is 1253143433. The reversal of 1253143424 is 4243413521.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1253143424² = 3140736882228887552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 374882 + ... + 378209.

Almost surely, 2^1253143424 is an apocalyptic number.

It is an amenable number.

1253143424 is an abundant number, since it is smaller than the sum of its proper divisors (1435395016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253143424 is an equidigital number, since it uses as much as digits as its factorization.

1253143424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753118 (or 753106 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 1253143424 is about 35399.7658749320. The cubic root of 1253143424 is about 1078.1195627188.

Adding to 1253143424 its reverse (4243413521), we get a palindrome (5496556945).

It can be divided in two parts, 12531 and 43424, that added together give a palindrome (55955).

The spelling of 1253143424 in words is "one billion, two hundred fifty-three million, one hundred forty-three thousand, four hundred twenty-four".