252142 has 16 divisors (see below), whose sum is σ = 420912. Its totient is φ = 112320.

The previous prime is 252139. The next prime is 252143. The reversal of 252142 is 241252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (26307).

2²⁵²¹⁴² is an apocalyptic number.

252142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

252142 is a deficient number, since it is larger than the sum of its proper divisors (168770).

252142 is a wasteful number, since it uses less digits than its factorization.

252142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243.

The product of its digits is 160, while the sum is 16.

The square root of 252142 is about 502.1374313871. The cubic root of 252142 is about 63.1754578105.

Adding to 252142 its reverse (241252), we get a palindrome (493394).

The spelling of 252142 in words is "two hundred fifty-two thousand, one hundred forty-two".