1253002543 has 8 divisors (see below), whose sum is σ = 1356239808. Its totient is φ = 1150744224.

The previous prime is 1253002483. The next prime is 1253002549. The reversal of 1253002543 is 3452003521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253002543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253002549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242071 + ... + 247192.

It is an arithmetic number, because the mean of its divisors is an integer number (169529976).

Almost surely, 2^1253002543 is an apocalyptic number.

1253002543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1253002543 is a deficient number, since it is larger than the sum of its proper divisors (103237265).

1253002543 is a wasteful number, since it uses less digits than its factorization.

1253002543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489473.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1253002543 is about 35397.7759612098. The cubic root of 1253002543 is about 1078.0791597206.

The spelling of 1253002543 in words is "one billion, two hundred fifty-three million, two thousand, five hundred forty-three".