1253495782 has 64 divisors (see below), whose sum is σ = 2489564160. Its totient is φ = 458265600.

The previous prime is 1253495753. The next prime is 1253495801. The reversal of 1253495782 is 2875943521.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1363519 + ... + 1364437.

It is an arithmetic number, because the mean of its divisors is an integer number (38899440).

Almost surely, 2^1253495782 is an apocalyptic number.

1253495782 is a deficient number, since it is larger than the sum of its proper divisors (1236068378).

1253495782 is a wasteful number, since it uses less digits than its factorization.

1253495782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477.

The product of its digits is 604800, while the sum is 46.

The square root of 1253495782 is about 35404.7423659600. The cubic root of 1253495782 is about 1078.2206015533.

It can be divided in two parts, 125349 and 5782, that added together give a palindrome (131131).

The spelling of 1253495782 in words is "one billion, two hundred fifty-three million, four hundred ninety-five thousand, seven hundred eighty-two".