1253241543 has 16 divisors (see below), whose sum is σ = 1696204800. Its totient is φ = 822937440.

The previous prime is 1253241487. The next prime is 1253241553. The reversal of 1253241543 is 3451423521.

It is not a de Polignac number, because 1253241543 - 2⁸ = 1253241287 is a prime.

It is a super-2 number, since 2×1253241543² = 3141228730202041698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1253241543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253241553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96013 + ... + 108281.

It is an arithmetic number, because the mean of its divisors is an integer number (106012800).

Almost surely, 2^1253241543 is an apocalyptic number.

1253241543 is a deficient number, since it is larger than the sum of its proper divisors (442963257).

1253241543 is a wasteful number, since it uses less digits than its factorization.

1253241543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12782.

The product of its digits is 14400, while the sum is 30.

The square root of 1253241543 is about 35401.1517185529. The cubic root of 1253241543 is about 1078.1477002941.

The spelling of 1253241543 in words is "one billion, two hundred fifty-three million, two hundred forty-one thousand, five hundred forty-three".