194374243 has 16 divisors (see below), whose sum is σ = 239073984. Its totient is φ = 154229760.

The previous prime is 194374241. The next prime is 194374249. The reversal of 194374243 is 342473491.

It is a cyclic number.

It is not a de Polignac number, because 194374243 - 2¹ = 194374241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194374241) 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, 6130 + ... + 20647.

It is an arithmetic number, because the mean of its divisors is an integer number (14942124).

Almost surely, 2^194374243 is an apocalyptic number.

194374243 is a deficient number, since it is larger than the sum of its proper divisors (44699741).

194374243 is a wasteful number, since it uses less digits than its factorization.

194374243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26862.

The product of its digits is 72576, while the sum is 37.

The square root of 194374243 is about 13941.8163450822. The cubic root of 194374243 is about 579.2680451580.

The spelling of 194374243 in words is "one hundred ninety-four million, three hundred seventy-four thousand, two hundred forty-three".