1397529 has 18 divisors (see below), whose sum is σ = 2348970. Its totient is φ = 798336.

The previous prime is 1397521. The next prime is 1397531. The reversal of 1397529 is 9257931.

It can be written as a sum of positive squares in only one way, i.e., 1334025 + 63504 = 1155^2 + 252^2 .

It is not a de Polignac number, because 1397529 - 2³ = 1397521 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1397493 and 1397502.

It is not an unprimeable number, because it can be changed into a prime (1397521) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1144 + ... + 2025.

2^1397529 is an apocalyptic number.

It is an amenable number.

1397529 is a deficient number, since it is larger than the sum of its proper divisors (951441).

1397529 is a wasteful number, since it uses less digits than its factorization.

1397529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189 (or 3179 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 1397529 is about 1182.1713073832. The cubic root of 1397529 is about 111.8030392488.

The spelling of 1397529 in words is "one million, three hundred ninety-seven thousand, five hundred twenty-nine".