149493 has 4 divisors (see below), whose sum is σ = 199328. Its totient is φ = 99660.

The previous prime is 149491. The next prime is 149497. The reversal of 149493 is 394941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 149493 - 2¹ = 149491 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24913 + ... + 24918.

It is an arithmetic number, because the mean of its divisors is an integer number (49832).

2¹⁴⁹⁴⁹³ is an apocalyptic number.

It is an amenable number.

149493 is a deficient number, since it is larger than the sum of its proper divisors (49835).

149493 is an equidigital number, since it uses as much as digits as its factorization.

149493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49834.

The product of its digits is 3888, while the sum is 30.

The square root of 149493 is about 386.6432464172. The cubic root of 149493 is about 53.0729977870.

It can be divided in two parts, 1 and 49493, that added together give a palindrome (49494).

The spelling of 149493 in words is "one hundred forty-nine thousand, four hundred ninety-three".