1285098 has 32 divisors (see below), whose sum is σ = 2794176. Its totient is φ = 392448.

The previous prime is 1285069. The next prime is 1285099. The reversal of 1285098 is 8905821.

It is a happy number.

It is an Ulam 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 15 ways as a sum of consecutive naturals, for example, 4240 + ... + 4532.

It is an arithmetic number, because the mean of its divisors is an integer number (87318).

2^1285098 is an apocalyptic number.

1285098 is an abundant number, since it is smaller than the sum of its proper divisors (1509078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1285098 is a wasteful number, since it uses less digits than its factorization.

1285098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1285098 is about 1133.6216299983. The cubic root of 1285098 is about 108.7206606016.

The spelling of 1285098 in words is "one million, two hundred eighty-five thousand, ninety-eight".