149755 has 8 divisors (see below), whose sum is σ = 183024. Its totient is φ = 117600.

The previous prime is 149749. The next prime is 149759. The reversal of 149755 is 557941.

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

It is not a de Polignac number, because 149755 - 2⁷ = 149627 is a prime.

It is a Duffinian number.

149755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (149759) 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, 60 + ... + 550.

It is an arithmetic number, because the mean of its divisors is an integer number (22878).

2¹⁴⁹⁷⁵⁵ is an apocalyptic number.

149755 is a deficient number, since it is larger than the sum of its proper divisors (33269).

149755 is an equidigital number, since it uses as much as digits as its factorization.

149755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its digits is 6300, while the sum is 31.

The square root of 149755 is about 386.9819117220. The cubic root of 149755 is about 53.1039847675.

The spelling of 149755 in words is "one hundred forty-nine thousand, seven hundred fifty-five".