194250019 has 8 divisors (see below), whose sum is σ = 205263360. Its totient is φ = 183450696.

The previous prime is 194249989. The next prime is 194250031. The reversal of 194250019 is 910052491.

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

It is a cyclic number.

It is not a de Polignac number, because 194250019 - 2⁵ = 194249987 is a prime.

It is a super-2 number, since 2×194250019² = 75466139763000722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194253019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51637 + ... + 55270.

It is an arithmetic number, because the mean of its divisors is an integer number (25657920).

Almost surely, 2^194250019 is an apocalyptic number.

194250019 is a deficient number, since it is larger than the sum of its proper divisors (11013341).

194250019 is a wasteful number, since it uses less digits than its factorization.

194250019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107009.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 194250019 is about 13937.3605463875. The cubic root of 194250019 is about 579.1446160322.

The spelling of 194250019 in words is "one hundred ninety-four million, two hundred fifty thousand, nineteen".