149499 has 24 divisors (see below), whose sum is σ = 259920. Its totient is φ = 84672.

The previous prime is 149497. The next prime is 149503. The reversal of 149499 is 994941.

It is not a de Polignac number, because 149499 - 2¹ = 149497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1267 + ... + 1379.

It is an arithmetic number, because the mean of its divisors is an integer number (10830).

2¹⁴⁹⁴⁹⁹ is an apocalyptic number.

149499 is a deficient number, since it is larger than the sum of its proper divisors (110421).

149499 is a wasteful number, since it uses less digits than its factorization.

149499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 123 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 149499 is about 386.6510054300. The cubic root of 149499 is about 53.0737078174.

The spelling of 149499 in words is "one hundred forty-nine thousand, four hundred ninety-nine".