148558 has 4 divisors (see below), whose sum is σ = 222840. Its totient is φ = 74278.

The previous prime is 148549. The next prime is 148573. The reversal of 148558 is 855841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 855841 = 7 ⋅122263.

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 a plaindrome in base 16.

It is a congruent number.

It is an unprimeable 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, 37138 + ... + 37141.

It is an arithmetic number, because the mean of its divisors is an integer number (55710).

2¹⁴⁸⁵⁵⁸ is an apocalyptic number.

148558 is a deficient number, since it is larger than the sum of its proper divisors (74282).

148558 is an equidigital number, since it uses as much as digits as its factorization.

148558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74281.

The product of its digits is 6400, while the sum is 31.

The square root of 148558 is about 385.4322249112. The cubic root of 148558 is about 52.9621184155.

The spelling of 148558 in words is "one hundred forty-eight thousand, five hundred fifty-eight".