1397512 has 16 divisors (see below), whose sum is σ = 2657340. Its totient is φ = 688896.

The previous prime is 1397509. The next prime is 1397521. The reversal of 1397512 is 2157931.

It can be written as a sum of positive squares in 2 ways, for example, as 1285956 + 111556 = 1134^2 + 334^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613 + ... + 1780.

2^1397512 is an apocalyptic number.

It is an amenable number.

1397512 is a deficient number, since it is larger than the sum of its proper divisors (1259828).

1397512 is a wasteful number, since it uses less digits than its factorization.

1397512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472 (or 2468 counting only the distinct ones).

The product of its digits is 1890, while the sum is 28.

The square root of 1397512 is about 1182.1641172020. The cubic root of 1397512 is about 111.8025859107.

The spelling of 1397512 in words is "one million, three hundred ninety-seven thousand, five hundred twelve".