158742 has 12 divisors (see below), whose sum is σ = 343980. Its totient is φ = 52908.

The previous prime is 158731. The next prime is 158747. The reversal of 158742 is 247851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4392 + ... + 4427.

It is an arithmetic number, because the mean of its divisors is an integer number (28665).

2¹⁵⁸⁷⁴² is an apocalyptic number.

158742 is an abundant number, since it is smaller than the sum of its proper divisors (185238).

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

158742 is a wasteful number, since it uses less digits than its factorization.

158742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8827 (or 8824 counting only the distinct ones).

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

The square root of 158742 is about 398.4243968434. The cubic root of 158742 is about 54.1456970770.

It can be divided in two parts, 15874 and 2, that added together give a square (15876 = 126²).

The spelling of 158742 in words is "one hundred fifty-eight thousand, seven hundred forty-two".