149505 has 8 divisors (see below), whose sum is σ = 239232. Its totient is φ = 79728.

The previous prime is 149503. The next prime is 149519. The reversal of 149505 is 505941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149505 - 2¹ = 149503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4969 + ... + 4998.

It is an arithmetic number, because the mean of its divisors is an integer number (29904).

It is a Proth number, since it is equal to 73 ⋅ 2¹¹ + 1 and 73 < 2¹¹.

2¹⁴⁹⁵⁰⁵ is an apocalyptic number.

149505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149505 is a deficient number, since it is larger than the sum of its proper divisors (89727).

149505 is an equidigital number, since it uses as much as digits as its factorization.

149505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9975.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 149505 is about 386.6587642871. The cubic root of 149505 is about 53.0744178289.

The spelling of 149505 in words is "one hundred forty-nine thousand, five hundred five".