861054 has 8 divisors (see below), whose sum is σ = 1722120. Its totient is φ = 287016.

The previous prime is 861053. The next prime is 861059. The reversal of 861054 is 450168.

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

861054 is an admirable number.

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 861054.

It is not an unprimeable number, because it can be changed into a prime (861053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71749 + ... + 71760.

It is an arithmetic number, because the mean of its divisors is an integer number (215265).

2⁸⁶¹⁰⁵⁴ is an apocalyptic number.

861054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

861054 is a wasteful number, since it uses less digits than its factorization.

861054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143514.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 861054 is about 927.9299542530. The cubic root of 861054 is about 95.1356879153.

The spelling of 861054 in words is "eight hundred sixty-one thousand, fifty-four".