193139148 has 24 divisors (see below), whose sum is σ = 454649328. Its totient is φ = 63809536.

The previous prime is 193139147. The next prime is 193139179. The reversal of 193139148 is 841931391.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (193139143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69861 + ... + 72572.

It is an arithmetic number, because the mean of its divisors is an integer number (18943722).

Almost surely, 2^193139148 is an apocalyptic number.

It is an amenable number.

193139148 is an abundant number, since it is smaller than the sum of its proper divisors (261510180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

193139148 is a wasteful number, since it uses less digits than its factorization.

193139148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142553 (or 142551 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 193139148 is about 13897.4511332114. The cubic root of 193139148 is about 578.0385067117.

The spelling of 193139148 in words is "one hundred ninety-three million, one hundred thirty-nine thousand, one hundred forty-eight".