1397864195 has 16 divisors (see below), whose sum is σ = 2064538560. Its totient is φ = 884801664.

The previous prime is 1397864179. The next prime is 1397864197. The reversal of 1397864195 is 5914687931.

It is a cyclic number.

It is not a de Polignac number, because 1397864195 - 2⁴ = 1397864179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1397864197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1535660 + ... + 1536569.

It is an arithmetic number, because the mean of its divisors is an integer number (129033660).

Almost surely, 2^1397864195 is an apocalyptic number.

1397864195 is a deficient number, since it is larger than the sum of its proper divisors (666674365).

1397864195 is a wasteful number, since it uses less digits than its factorization.

1397864195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072254.

The product of its digits is 1632960, while the sum is 53.

The square root of 1397864195 is about 37388.0220792703. The cubic root of 1397864195 is about 1118.1197712513.

The spelling of 1397864195 in words is "one billion, three hundred ninety-seven million, eight hundred sixty-four thousand, one hundred ninety-five".