193138825 has 12 divisors (see below), whose sum is σ = 261264528. Its totient is φ = 140464400.

The previous prime is 193138817. The next prime is 193138859. The reversal of 193138825 is 528831391.

It is not a de Polignac number, because 193138825 - 2³ = 193138817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350887 + ... + 351436.

It is an arithmetic number, because the mean of its divisors is an integer number (21772044).

Almost surely, 2^193138825 is an apocalyptic number.

It is an amenable number.

193138825 is a deficient number, since it is larger than the sum of its proper divisors (68125703).

193138825 is a wasteful number, since it uses less digits than its factorization.

193138825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702344 (or 702339 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 193138825 is about 13897.4395123706. The cubic root of 193138825 is about 578.0381844802.

The spelling of 193138825 in words is "one hundred ninety-three million, one hundred thirty-eight thousand, eight hundred twenty-five".