149765 has 16 divisors (see below), whose sum is σ = 224640. Its totient is φ = 93120.

The previous prime is 149759. The next prime is 149767. The reversal of 149765 is 567941.

It is a happy number.

It is not a de Polignac number, because 149765 - 2⁴ = 149749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149767) 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, 191 + ... + 579.

It is an arithmetic number, because the mean of its divisors is an integer number (14040).

2¹⁴⁹⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

149765 is a deficient number, since it is larger than the sum of its proper divisors (74875).

149765 is a wasteful number, since it uses less digits than its factorization.

149765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412.

The product of its digits is 7560, while the sum is 32.

The square root of 149765 is about 386.9948320068. The cubic root of 149765 is about 53.1051667603.

It can be divided in two parts, 14 and 9765, that added together give a palindrome (9779).

The spelling of 149765 in words is "one hundred forty-nine thousand, seven hundred sixty-five".