19140194 has 8 divisors (see below), whose sum is σ = 29410668. Its totient is φ = 9336640.

The previous prime is 19140193. The next prime is 19140197. The reversal of 19140194 is 49104191.

It can be written as a sum of positive squares in 2 ways, for example, as 18809569 + 330625 = 4337^2 + 575^2 .

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

It is not an unprimeable number, because it can be changed into a prime (19140193) 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, 116627 + ... + 116790.

Almost surely, 2^19140194 is an apocalyptic number.

19140194 is a deficient number, since it is larger than the sum of its proper divisors (10270474).

19140194 is a wasteful number, since it uses less digits than its factorization.

19140194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233460.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 19140194 is about 4374.9507425799. The cubic root of 19140194 is about 267.4948623347.

The spelling of 19140194 in words is "nineteen million, one hundred forty thousand, one hundred ninety-four".