1253302543 has 6 divisors (see below), whose sum is σ = 1331363216. Its totient is φ = 1179578592.

The previous prime is 1253302537. The next prime is 1253302559. The reversal of 1253302543 is 3452033521.

It is not a de Polignac number, because 1253302543 - 2⁵ = 1253302511 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 (1253302513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2168055 + ... + 2168632.

Almost surely, 2^1253302543 is an apocalyptic number.

1253302543 is a deficient number, since it is larger than the sum of its proper divisors (78060673).

1253302543 is an equidigital number, since it uses as much as digits as its factorization.

1253302543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336721 (or 4336704 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 1253302543 is about 35402.0132619601. The cubic root of 1253302543 is about 1078.1651925174.

The spelling of 1253302543 in words is "one billion, two hundred fifty-three million, three hundred two thousand, five hundred forty-three".