1253816495 has 8 divisors (see below), whose sum is σ = 1532968416. Its totient is φ = 984127456.

The previous prime is 1253816467. The next prime is 1253816507. The reversal of 1253816495 is 5946183521.

It is a happy number.

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-1253816495 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2365427 + ... + 2365956.

It is an arithmetic number, because the mean of its divisors is an integer number (191621052).

Almost surely, 2^1253816495 is an apocalyptic number.

1253816495 is a deficient number, since it is larger than the sum of its proper divisors (279151921).

1253816495 is an equidigital number, since it uses as much as digits as its factorization.

1253816495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731441.

The product of its digits is 259200, while the sum is 44.

The square root of 1253816495 is about 35409.2713141629. The cubic root of 1253816495 is about 1078.3125497092.

The spelling of 1253816495 in words is "one billion, two hundred fifty-three million, eight hundred sixteen thousand, four hundred ninety-five".