1397812495 has 8 divisors (see below), whose sum is σ = 1689443280. Its totient is φ = 1110204480.

The previous prime is 1397812487. The next prime is 1397812517. The reversal of 1397812495 is 5942187931.

It is a happy number.

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

It is not a de Polignac number, because 1397812495 - 2³ = 1397812487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004926 + ... + 1006315.

It is an arithmetic number, because the mean of its divisors is an integer number (211180410).

Almost surely, 2^1397812495 is an apocalyptic number.

1397812495 is a deficient number, since it is larger than the sum of its proper divisors (291630785).

1397812495 is a wasteful number, since it uses less digits than its factorization.

1397812495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011385.

The product of its digits is 544320, while the sum is 49.

The square root of 1397812495 is about 37387.3306749760. The cubic root of 1397812495 is about 1118.1059865301.

The spelling of 1397812495 in words is "one billion, three hundred ninety-seven million, eight hundred twelve thousand, four hundred ninety-five".