1397348565 has 16 divisors (see below), whose sum is σ = 2236344000. Its totient is φ = 745057152.

The previous prime is 1397348543. The next prime is 1397348569. The reversal of 1397348565 is 5658437931.

It is not a de Polignac number, because 1397348565 - 2⁷ = 1397348437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397348569) 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, 61086 + ... + 80784.

It is an arithmetic number, because the mean of its divisors is an integer number (139771500).

Almost surely, 2^1397348565 is an apocalyptic number.

1397348565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1397348565 is a deficient number, since it is larger than the sum of its proper divisors (838995435).

1397348565 is a wasteful number, since it uses less digits than its factorization.

1397348565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24436.

The product of its digits is 2721600, while the sum is 51.

The square root of 1397348565 is about 37381.1257856154. The cubic root of 1397348565 is about 1117.9822741079.

The spelling of 1397348565 in words is "one billion, three hundred ninety-seven million, three hundred forty-eight thousand, five hundred sixty-five".