19194134 has 4 divisors (see below), whose sum is σ = 28791204. Its totient is φ = 9597066.

The previous prime is 19194107. The next prime is 19194169. The reversal of 19194134 is 43149191.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19194134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4798532 + ... + 4798535.

It is an arithmetic number, because the mean of its divisors is an integer number (7197801).

Almost surely, 2^19194134 is an apocalyptic number.

19194134 is a deficient number, since it is larger than the sum of its proper divisors (9597070).

19194134 is an equidigital number, since it uses as much as digits as its factorization.

19194134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9597069.

The product of its digits is 3888, while the sum is 32.

The square root of 19194134 is about 4381.1110462986. Note that the first 3 decimals coincide. The cubic root of 19194134 is about 267.7459071602.

The spelling of 19194134 in words is "nineteen million, one hundred ninety-four thousand, one hundred thirty-four".