148340138 has 4 divisors (see below), whose sum is σ = 222510210. Its totient is φ = 74170068.

The previous prime is 148340123. The next prime is 148340189. The reversal of 148340138 is 831043841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831043841 = 12457 ⋅66713.

It can be written as a sum of positive squares in only one way, i.e., 101868649 + 46471489 = 10093^2 + 6817^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37085033 + ... + 37085036.

Almost surely, 2^148340138 is an apocalyptic number.

148340138 is a deficient number, since it is larger than the sum of its proper divisors (74170072).

148340138 is an equidigital number, since it uses as much as digits as its factorization.

148340138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74170071.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 148340138 is about 12179.4966234241. The cubic root of 148340138 is about 529.3621589914.

Adding to 148340138 its reverse (831043841), we get a palindrome (979383979).

The spelling of 148340138 in words is "one hundred forty-eight million, three hundred forty thousand, one hundred thirty-eight".