125784 has 24 divisors (see below), whose sum is σ = 340860. Its totient is φ = 41904.

The previous prime is 125777. The next prime is 125789. The reversal of 125784 is 487521.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×125784² = 31643229312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125789) by changing a digit.

125784 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 802 + ... + 945.

2¹²⁵⁷⁸⁴ is an apocalyptic number.

It is an amenable number.

125784 is an abundant number, since it is smaller than the sum of its proper divisors (215076).

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

125784 is a wasteful number, since it uses less digits than its factorization.

125784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1752 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 125784 is about 354.6604009472. The cubic root of 125784 is about 50.1043155473.

It can be divided in two parts, 125 and 784, that added together give a palindrome (909).

The spelling of 125784 in words is "one hundred twenty-five thousand, seven hundred eighty-four".