861152 has 24 divisors (see below), whose sum is σ = 1796256. Its totient is φ = 404992.

The previous prime is 861139. The next prime is 861163. The reversal of 861152 is 251168.

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 861152.

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, 248 + ... + 1335.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2⁸⁶¹¹⁵² is an apocalyptic number.

It is an amenable number.

861152 is an abundant number, since it is smaller than the sum of its proper divisors (935104).

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

861152 is a wasteful number, since it uses less digits than its factorization.

861152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610 (or 1602 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 861152 is about 927.9827584605. The cubic root of 861152 is about 95.1392970361.

The spelling of 861152 in words is "eight hundred sixty-one thousand, one hundred fifty-two".