149042 has 4 divisors (see below), whose sum is σ = 223566. Its totient is φ = 74520.

The previous prime is 149033. The next prime is 149053. The reversal of 149042 is 240941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240941 = 17 ⋅14173.

It can be written as a sum of positive squares in only one way, i.e., 116281 + 32761 = 341^2 + 181^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149042.

It is an unprimeable number.

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, 37259 + ... + 37262.

2¹⁴⁹⁰⁴² is an apocalyptic number.

149042 is a deficient number, since it is larger than the sum of its proper divisors (74524).

149042 is an equidigital number, since it uses as much as digits as its factorization.

149042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74523.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 149042 is about 386.0595808939. The cubic root of 149042 is about 53.0195726927.

Adding to 149042 its reverse (240941), we get a palindrome (389983).

The spelling of 149042 in words is "one hundred forty-nine thousand, forty-two".