861254 has 16 divisors (see below), whose sum is σ = 1390608. Its totient is φ = 398592.

The previous prime is 861239. The next prime is 861293. The reversal of 861254 is 452168.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 861254.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (86913).

2⁸⁶¹²⁵⁴ is an apocalyptic number.

861254 is a deficient number, since it is larger than the sum of its proper divisors (529354).

861254 is a wasteful number, since it uses less digits than its factorization.

861254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439.

The product of its digits is 1920, while the sum is 26.

The square root of 861254 is about 928.0377147509. The cubic root of 861254 is about 95.1430531772.

The spelling of 861254 in words is "eight hundred sixty-one thousand, two hundred fifty-four".