193767138 has 24 divisors (see below), whose sum is σ = 420673500. Its totient is φ = 64459104.

The previous prime is 193767127. The next prime is 193767179. The reversal of 193767138 is 831767391.

193767138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 193015449 + 751689 = 13893^2 + 867^2 .

It is a super-2 number, since 2×193767138² = 75091407537422088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 193767093 and 193767102.

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, 1413 + ... + 19736.

Almost surely, 2^193767138 is an apocalyptic number.

193767138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

193767138 is an abundant number, since it is smaller than the sum of its proper divisors (226906362).

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

193767138 is a wasteful number, since it uses less digits than its factorization.

193767138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21666 (or 21663 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 193767138 is about 13920.0265085954. The cubic root of 193767138 is about 578.6643243875.

The spelling of 193767138 in words is "one hundred ninety-three million, seven hundred sixty-seven thousand, one hundred thirty-eight".