149523 has 16 divisors (see below), whose sum is σ = 228096. Its totient is φ = 86240.

The previous prime is 149521. The next prime is 149531. The reversal of 149523 is 325941.

149523 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 149523 - 2¹ = 149521 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 149493 and 149502.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661 + ... + 857.

It is an arithmetic number, because the mean of its divisors is an integer number (14256).

2¹⁴⁹⁵²³ is an apocalyptic number.

149523 is a deficient number, since it is larger than the sum of its proper divisors (78573).

149523 is a wasteful number, since it uses less digits than its factorization.

149523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234.

The product of its digits is 1080, while the sum is 24.

The square root of 149523 is about 386.6820399243. The cubic root of 149523 is about 53.0765477491.

The spelling of 149523 in words is "one hundred forty-nine thousand, five hundred twenty-three".