193421043 has 6 divisors (see below), whose sum is σ = 279385964. Its totient is φ = 128947356.

The previous prime is 193421023. The next prime is 193421051. The reversal of 193421043 is 340124391.

It is not a de Polignac number, because 193421043 - 2⁶ = 193420979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193420998 and 193421016.

It is not an unprimeable number, because it can be changed into a prime (193421003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10745605 + ... + 10745622.

Almost surely, 2^193421043 is an apocalyptic number.

193421043 is a deficient number, since it is larger than the sum of its proper divisors (85964921).

193421043 is a wasteful number, since it uses less digits than its factorization.

193421043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21491233 (or 21491230 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 193421043 is about 13907.5894029124. The cubic root of 193421043 is about 578.3195941299.

The spelling of 193421043 in words is "one hundred ninety-three million, four hundred twenty-one thousand, forty-three".