856154 has 24 divisors (see below), whose sum is σ = 1482300. Its totient is φ = 369408.

The previous prime is 856153. The next prime is 856169. The reversal of 856154 is 451658.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 87025 + 769129 = 295^2 + 877^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5672 + ... + 5820.

2⁸⁵⁶¹⁵⁴ is an apocalyptic number.

856154 is a deficient number, since it is larger than the sum of its proper divisors (626146).

856154 is a wasteful number, since it uses less digits than its factorization.

856154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 181 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 856154 is about 925.2859017623. The cubic root of 856154 is about 94.9548816224.

Subtracting from 856154 its reverse (451658), we obtain a square (404496 = 636²).

The spelling of 856154 in words is "eight hundred fifty-six thousand, one hundred fifty-four".