149955 has 16 divisors (see below), whose sum is σ = 258720. Its totient is φ = 73728.

The previous prime is 149953. The next prime is 149969. The reversal of 149955 is 559941.

It is not a de Polignac number, because 149955 - 2¹ = 149953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149953) 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, 190 + ... + 579.

It is an arithmetic number, because the mean of its divisors is an integer number (16170).

2¹⁴⁹⁹⁵⁵ is an apocalyptic number.

149955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149955 is a deficient number, since it is larger than the sum of its proper divisors (108765).

149955 is a wasteful number, since it uses less digits than its factorization.

149955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its digits is 8100, while the sum is 33.

The square root of 149955 is about 387.2402355128. The cubic root of 149955 is about 53.1276146349.

The spelling of 149955 in words is "one hundred forty-nine thousand, nine hundred fifty-five".