194553745 has 8 divisors (see below), whose sum is σ = 233601984. Its totient is φ = 155551344.

The previous prime is 194553719. The next prime is 194553767. The reversal of 194553745 is 547355491.

194553745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194553745 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299 + ... + 19768.

It is an arithmetic number, because the mean of its divisors is an integer number (29200248).

Almost surely, 2^194553745 is an apocalyptic number.

It is an amenable number.

194553745 is a deficient number, since it is larger than the sum of its proper divisors (39048239).

194553745 is a wasteful number, since it uses less digits than its factorization.

194553745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22919.

The product of its digits is 378000, while the sum is 43.

The square root of 194553745 is about 13948.2523994944. The cubic root of 194553745 is about 579.4463057126.

The spelling of 194553745 in words is "one hundred ninety-four million, five hundred fifty-three thousand, seven hundred forty-five".