1285097 has 4 divisors (see below), whose sum is σ = 1401936. Its totient is φ = 1168260.

The previous prime is 1285069. The next prime is 1285099. The reversal of 1285097 is 7905821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1285097 - 2⁸ = 1284841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1285099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58403 + ... + 58424.

It is an arithmetic number, because the mean of its divisors is an integer number (350484).

2^1285097 is an apocalyptic number.

It is an amenable number.

1285097 is a deficient number, since it is larger than the sum of its proper divisors (116839).

1285097 is a wasteful number, since it uses less digits than its factorization.

1285097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116838.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1285097 is about 1133.6211889339. The cubic root of 1285097 is about 108.7206324013.

It can be divided in two parts, 128 and 5097, that added together give a palindrome (5225).

The spelling of 1285097 in words is "one million, two hundred eighty-five thousand, ninety-seven".