193347138 has 16 divisors (see below), whose sum is σ = 387273600. Its totient is φ = 64352496.

The previous prime is 193347083. The next prime is 193347151. The reversal of 193347138 is 831743391.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 193347096 and 193347105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19738 + ... + 27861.

It is an arithmetic number, because the mean of its divisors is an integer number (24204600).

Almost surely, 2^193347138 is an apocalyptic number.

193347138 is an abundant number, since it is smaller than the sum of its proper divisors (193926462).

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

193347138 is a wasteful number, since it uses less digits than its factorization.

193347138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48281.

The product of its digits is 54432, while the sum is 39.

The square root of 193347138 is about 13904.9321465443. The cubic root of 193347138 is about 578.2459272842.

The spelling of 193347138 in words is "one hundred ninety-three million, three hundred forty-seven thousand, one hundred thirty-eight".