148538 has 16 divisors (see below), whose sum is σ = 249480. Its totient is φ = 65856.

The previous prime is 148537. The next prime is 148549. The reversal of 148538 is 835841.

It can be written as a sum of positive squares in 4 ways, for example, as 139129 + 9409 = 373^2 + 97^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 148538.

It is not an unprimeable number, because it can be changed into a prime (148531) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 656 + ... + 852.

2¹⁴⁸⁵³⁸ is an apocalyptic number.

148538 is a deficient number, since it is larger than the sum of its proper divisors (100942).

148538 is a wasteful number, since it uses less digits than its factorization.

148538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its digits is 3840, while the sum is 29.

The square root of 148538 is about 385.4062791393. The cubic root of 148538 is about 52.9597415887.

It can be divided in two parts, 148 and 538, that added together give a palindrome (686).

The spelling of 148538 in words is "one hundred forty-eight thousand, five hundred thirty-eight".