833745138 has 16 divisors (see below), whose sum is σ = 1667780256. Its totient is φ = 277866720.

The previous prime is 833745131. The next prime is 833745149. The reversal of 833745138 is 831547338.

It is a self number, because there is not a number n which added to its sum of digits gives 833745138.

It is not an unprimeable number, because it can be changed into a prime (833745131) 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, 49233 + ... + 63963.

It is an arithmetic number, because the mean of its divisors is an integer number (104236266).

Almost surely, 2^833745138 is an apocalyptic number.

833745138 is an abundant number, since it is smaller than the sum of its proper divisors (834035118).

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

833745138 is a wasteful number, since it uses less digits than its factorization.

833745138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24169.

The product of its digits is 241920, while the sum is 42.

The square root of 833745138 is about 28874.6452445740. The cubic root of 833745138 is about 941.1910125659.

The spelling of 833745138 in words is "eight hundred thirty-three million, seven hundred forty-five thousand, one hundred thirty-eight".