152842 has 4 divisors (see below), whose sum is σ = 229266. Its totient is φ = 76420.

The previous prime is 152839. The next prime is 152843. The reversal of 152842 is 248251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 151321 + 1521 = 389^2 + 39^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 1 + 5⁶ + 8⁴ + 2¹⁰ + 4⁵ + 2¹⁷ .

It is not an unprimeable number, because it can be changed into a prime (152843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38209 + ... + 38212.

2¹⁵²⁸⁴² is an apocalyptic number.

152842 is a deficient number, since it is larger than the sum of its proper divisors (76424).

152842 is an equidigital number, since it uses as much as digits as its factorization.

152842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76423.

The product of its digits is 640, while the sum is 22.

The square root of 152842 is about 390.9501246962. The cubic root of 152842 is about 53.4663951772.

The spelling of 152842 in words is "one hundred fifty-two thousand, eight hundred forty-two".