193834945 has 16 divisors (see below), whose sum is σ = 234888192. Its totient is φ = 153552960.

The previous prime is 193834943. The next prime is 193834957. The reversal of 193834945 is 549438391.

It is a happy number.

It is not a de Polignac number, because 193834945 - 2¹ = 193834943 is a prime.

It is a Duffinian number.

Its product of digits (466560) is a multiple of the sum of its prime divisors (1152).

It is a junction number, because it is equal to n+sod(n) for n = 193834895 and 193834904.

It is not an unprimeable number, because it can be changed into a prime (193834943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292915 + ... + 293575.

It is an arithmetic number, because the mean of its divisors is an integer number (14680512).

Almost surely, 2^193834945 is an apocalyptic number.

It is an amenable number.

193834945 is a deficient number, since it is larger than the sum of its proper divisors (41053247).

193834945 is a wasteful number, since it uses less digits than its factorization.

193834945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its digits is 466560, while the sum is 46.

The square root of 193834945 is about 13922.4618871807. The cubic root of 193834945 is about 578.7318159071.

It can be divided in two parts, 19383 and 4945, that multiplied together give a triangular number (95848935 = T₁₃₈₄₅).

The spelling of 193834945 in words is "one hundred ninety-three million, eight hundred thirty-four thousand, nine hundred forty-five".