149558 has 4 divisors (see below), whose sum is σ = 224340. Its totient is φ = 74778.

The previous prime is 149551. The next prime is 149561. The reversal of 149558 is 855941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 855941 = 31 ⋅27611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149551) by changing a digit.

149558 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37388 + ... + 37391.

It is an arithmetic number, because the mean of its divisors is an integer number (56085).

2¹⁴⁹⁵⁵⁸ is an apocalyptic number.

149558 is a deficient number, since it is larger than the sum of its proper divisors (74782).

149558 is an equidigital number, since it uses as much as digits as its factorization.

149558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74781.

The product of its digits is 7200, while the sum is 32.

The square root of 149558 is about 386.7272940975. The cubic root of 149558 is about 53.0806887714.

It can be divided in two parts, 149 and 558, that added together give a palindrome (707).

The spelling of 149558 in words is "one hundred forty-nine thousand, five hundred fifty-eight".