148138443 has 16 divisors (see below), whose sum is σ = 220348800. Its totient is φ = 98361000.

The previous prime is 148138433. The next prime is 148138451. The reversal of 148138443 is 344831841.

148138443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 148138443 - 2⁴ = 148138427 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 148138398 and 148138407.

It is not an unprimeable number, because it can be changed into a prime (148138433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4153 + ... + 17706.

It is an arithmetic number, because the mean of its divisors is an integer number (13771800).

Almost surely, 2^148138443 is an apocalyptic number.

148138443 is a deficient number, since it is larger than the sum of its proper divisors (72210357).

148138443 is a wasteful number, since it uses less digits than its factorization.

148138443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22119 (or 22113 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 148138443 is about 12171.2137028318. The cubic root of 148138443 is about 529.1221292653.

The spelling of 148138443 in words is "one hundred forty-eight million, one hundred thirty-eight thousand, four hundred forty-three".