19140206 has 8 divisors (see below), whose sum is σ = 29636544. Its totient is φ = 9261360.

The previous prime is 19140197. The next prime is 19140221. The reversal of 19140206 is 60204191.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 154295 + ... + 154418.

It is an arithmetic number, because the mean of its divisors is an integer number (3704568).

Almost surely, 2^19140206 is an apocalyptic number.

19140206 is a deficient number, since it is larger than the sum of its proper divisors (10496338).

19140206 is a wasteful number, since it uses less digits than its factorization.

19140206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308746.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 19140206 is about 4374.9521140236. The cubic root of 19140206 is about 267.4949182369.

Adding to 19140206 its reverse (60204191), we get a palindrome (79344397).

The spelling of 19140206 in words is "nineteen million, one hundred forty thousand, two hundred six".