149458 has 4 divisors (see below), whose sum is σ = 224190. Its totient is φ = 74728.

The previous prime is 149441. The next prime is 149459. The reversal of 149458 is 854941.

It is a happy number.

149458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 854941 = 839 ⋅1019.

It can be written as a sum of positive squares in only one way, i.e., 131769 + 17689 = 363^2 + 133^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (149459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37363 + ... + 37366.

2¹⁴⁹⁴⁵⁸ is an apocalyptic number.

149458 is a deficient number, since it is larger than the sum of its proper divisors (74732).

149458 is an equidigital number, since it uses as much as digits as its factorization.

149458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74731.

The product of its digits is 5760, while the sum is 31.

The square root of 149458 is about 386.5979824055. The cubic root of 149458 is about 53.0688555643.

The spelling of 149458 in words is "one hundred forty-nine thousand, four hundred fifty-eight".