981235 has 4 divisors (see below), whose sum is σ = 1177488. Its totient is φ = 784984.

The previous prime is 981221. The next prime is 981241. The reversal of 981235 is 532189.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981235 is a prime.

It is a Duffinian number.

981235 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98119 + ... + 98128.

It is an arithmetic number, because the mean of its divisors is an integer number (294372).

2⁹⁸¹²³⁵ is an apocalyptic number.

981235 is a deficient number, since it is larger than the sum of its proper divisors (196253).

981235 is a wasteful number, since it uses less digits than its factorization.

981235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196252.

The product of its digits is 2160, while the sum is 28.

The square root of 981235 is about 990.5730664620. The cubic root of 981235 is about 99.3705461923.

The spelling of 981235 in words is "nine hundred eighty-one thousand, two hundred thirty-five".