125642 has 8 divisors (see below), whose sum is σ = 205632. Its totient is φ = 57100.

The previous prime is 125641. The next prime is 125651. The reversal of 125642 is 246521.

It is a happy number.

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

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (125641) 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, 2834 + ... + 2877.

It is an arithmetic number, because the mean of its divisors is an integer number (25704).

2¹²⁵⁶⁴² is an apocalyptic number.

125642 is a deficient number, since it is larger than the sum of its proper divisors (79990).

125642 is a wasteful number, since it uses less digits than its factorization.

125642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724.

The product of its digits is 480, while the sum is 20.

The square root of 125642 is about 354.4601529086. The cubic root of 125642 is about 50.0854538695.

It can be divided in two parts, 125 and 642, that added together give a palindrome (767).

The spelling of 125642 in words is "one hundred twenty-five thousand, six hundred forty-two".