125142 has 8 divisors (see below), whose sum is σ = 250296. Its totient is φ = 41712.

The previous prime is 125141. The next prime is 125149. The reversal of 125142 is 241521.

125142 is nontrivially palindromic in base 12.

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

125142 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 125142.

It is not an unprimeable number, because it can be changed into a prime (125141) 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, 10423 + ... + 10434.

It is an arithmetic number, because the mean of its divisors is an integer number (31287).

2¹²⁵¹⁴² is an apocalyptic number.

125142 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.

125142 is a wasteful number, since it uses less digits than its factorization.

125142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20862.

The product of its digits is 80, while the sum is 15.

The square root of 125142 is about 353.7541519191. The cubic root of 125142 is about 50.0189261684.

Adding to 125142 its reverse (241521), we get a palindrome (366663).

The spelling of 125142 in words is "one hundred twenty-five thousand, one hundred forty-two".