1297555 has 16 divisors (see below), whose sum is σ = 1799424. Its totient is φ = 879840.

The previous prime is 1297537. The next prime is 1297561. The reversal of 1297555 is 5557921.

It is not a de Polignac number, because 1297555 - 2⁵ = 1297523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1297555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4444 + ... + 4726.

It is an arithmetic number, because the mean of its divisors is an integer number (112464).

2^1297555 is an apocalyptic number.

1297555 is a deficient number, since it is larger than the sum of its proper divisors (501869).

1297555 is a wasteful number, since it uses less digits than its factorization.

1297555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its digits is 15750, while the sum is 34.

The square root of 1297555 is about 1139.1027170541. The cubic root of 1297555 is about 109.0708234275.

The spelling of 1297555 in words is "one million, two hundred ninety-seven thousand, five hundred fifty-five".