193454089 has 4 divisors (see below), whose sum is σ = 193508224. Its totient is φ = 193399956.

The previous prime is 193454083. The next prime is 193454111. The reversal of 193454089 is 980454391.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 193454089 - 2⁵ = 193454057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193454083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21297 + ... + 28990.

It is an arithmetic number, because the mean of its divisors is an integer number (48377056).

Almost surely, 2^193454089 is an apocalyptic number.

It is an amenable number.

193454089 is a deficient number, since it is larger than the sum of its proper divisors (54135).

193454089 is an equidigital number, since it uses as much as digits as its factorization.

193454089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54134.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 193454089 is about 13908.7774085288. Note that the first 3 decimals coincide. The cubic root of 193454089 is about 578.3525275701.

The spelling of 193454089 in words is "one hundred ninety-three million, four hundred fifty-four thousand, eighty-nine".