19494122 has 4 divisors (see below), whose sum is σ = 29241186. Its totient is φ = 9747060.

The previous prime is 19494107. The next prime is 19494149. The reversal of 19494122 is 22149491.

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

It can be written as a sum of positive squares in only one way, i.e., 13388281 + 6105841 = 3659^2 + 2471^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4873529 + ... + 4873532.

Almost surely, 2^19494122 is an apocalyptic number.

19494122 is a deficient number, since it is larger than the sum of its proper divisors (9747064).

19494122 is an equidigital number, since it uses as much as digits as its factorization.

19494122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9747063.

The product of its digits is 5184, while the sum is 32.

The square root of 19494122 is about 4415.2148305603. The cubic root of 19494122 is about 269.1335829944.

The spelling of 19494122 in words is "nineteen million, four hundred ninety-four thousand, one hundred twenty-two".