1285995 has 8 divisors (see below), whose sum is σ = 2057616. Its totient is φ = 685856.

The previous prime is 1285993. The next prime is 1286011. The reversal of 1285995 is 5995821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1285995 - 2¹ = 1285993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42852 + ... + 42881.

It is an arithmetic number, because the mean of its divisors is an integer number (257202).

2^1285995 is an apocalyptic number.

1285995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1285995 is a deficient number, since it is larger than the sum of its proper divisors (771621).

1285995 is an equidigital number, since it uses as much as digits as its factorization.

1285995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85741.

The product of its digits is 32400, while the sum is 39.

The square root of 1285995 is about 1134.0171956368. The cubic root of 1285995 is about 108.7459504371.

Subtracting from 1285995 its sum of digits (39), we obtain a square (1285956 = 1134²).

The spelling of 1285995 in words is "one million, two hundred eighty-five thousand, nine hundred ninety-five".