1397545 has 16 divisors (see below), whose sum is σ = 1808640. Its totient is φ = 1033344.

The previous prime is 1397531. The next prime is 1397551. The reversal of 1397545 is 5457931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1397545 is a prime.

1397545 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1397545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4309 + ... + 4621.

It is an arithmetic number, because the mean of its divisors is an integer number (113040).

2^1397545 is an apocalyptic number.

It is an amenable number.

1397545 is a deficient number, since it is larger than the sum of its proper divisors (411095).

1397545 is a wasteful number, since it uses less digits than its factorization.

1397545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its digits is 18900, while the sum is 34.

The square root of 1397545 is about 1182.1780745725. The cubic root of 1397545 is about 111.8034659166.

The spelling of 1397545 in words is "one million, three hundred ninety-seven thousand, five hundred forty-five".