149522 has 4 divisors (see below), whose sum is σ = 224286. Its totient is φ = 74760.

The previous prime is 149521. The next prime is 149531. The reversal of 149522 is 225941.

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., 137641 + 11881 = 371^2 + 109^2 .

It is not an unprimeable number, because it can be changed into a prime (149521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37379 + ... + 37382.

2¹⁴⁹⁵²² is an apocalyptic number.

149522 is a deficient number, since it is larger than the sum of its proper divisors (74764).

149522 is an equidigital number, since it uses as much as digits as its factorization.

149522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74763.

The product of its digits is 720, while the sum is 23.

The square root of 149522 is about 386.6807468701. The cubic root of 149522 is about 53.0764294247.

The spelling of 149522 in words is "one hundred forty-nine thousand, five hundred twenty-two".