156442 has 16 divisors (see below), whose sum is σ = 276192. Its totient is φ = 65520.

The previous prime is 156437. The next prime is 156467. The reversal of 156442 is 244651.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13 + ... + 559.

It is an arithmetic number, because the mean of its divisors is an integer number (17262).

2¹⁵⁶⁴⁴² is an apocalyptic number.

156442 is a deficient number, since it is larger than the sum of its proper divisors (119750).

156442 is a wasteful number, since it uses less digits than its factorization.

156442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573.

The product of its digits is 960, while the sum is 22.

The square root of 156442 is about 395.5274958837. The cubic root of 156442 is about 53.8829196318.

Subtracting 156442 from its reverse (244651), we obtain a square (88209 = 297²).

The spelling of 156442 in words is "one hundred fifty-six thousand, four hundred forty-two".