1357497 has 6 divisors (see below), whose sum is σ = 1960842. Its totient is φ = 904992.

The previous prime is 1357463. The next prime is 1357507. The reversal of 1357497 is 7947531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1354896 + 2601 = 1164^2 + 51^2 .

It is not a de Polignac number, because 1357497 - 2¹⁰ = 1356473 is a prime.

1357497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1357427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75408 + ... + 75425.

It is an arithmetic number, because the mean of its divisors is an integer number (326807).

2^1357497 is an apocalyptic number.

It is an amenable number.

1357497 is a deficient number, since it is larger than the sum of its proper divisors (603345).

1357497 is a wasteful number, since it uses less digits than its factorization.

1357497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150839 (or 150836 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 1357497 is about 1165.1167323492. The cubic root of 1357497 is about 110.7251539601.

The spelling of 1357497 in words is "one million, three hundred fifty-seven thousand, four hundred ninety-seven".