149913 has 6 divisors (see below), whose sum is σ = 216554. Its totient is φ = 99936.

The previous prime is 149911. The next prime is 149921. The reversal of 149913 is 319941.

It can be written as a sum of positive squares in only one way, i.e., 149769 + 144 = 387^2 + 12^2 .

It is not a de Polignac number, because 149913 - 2¹ = 149911 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (149911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8320 + ... + 8337.

2¹⁴⁹⁹¹³ is an apocalyptic number.

It is an amenable number.

149913 is a deficient number, since it is larger than the sum of its proper divisors (66641).

149913 is a wasteful number, since it uses less digits than its factorization.

149913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16663 (or 16660 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 149913 is about 387.1860018131. The cubic root of 149913 is about 53.1226541063.

The spelling of 149913 in words is "one hundred forty-nine thousand, nine hundred thirteen".