19120994 has 4 divisors (see below), whose sum is σ = 28681494. Its totient is φ = 9560496.

The previous prime is 19120987. The next prime is 19121029. The reversal of 19120994 is 49902191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49902191 = 17 ⋅2935423.

It can be written as a sum of positive squares in only one way, i.e., 14554225 + 4566769 = 3815^2 + 2137^2 .

It is a super-2 number, since 2×19120994² = 731224823096072, which contains 22 as substring.

It is a Curzon 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 as a sum of consecutive naturals, namely, 4780247 + ... + 4780250.

Almost surely, 2^19120994 is an apocalyptic number.

19120994 is a deficient number, since it is larger than the sum of its proper divisors (9560500).

19120994 is an equidigital number, since it uses as much as digits as its factorization.

19120994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9560499.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 19120994 is about 4372.7558815923. The cubic root of 19120994 is about 267.4053888489.

The spelling of 19120994 in words is "nineteen million, one hundred twenty thousand, nine hundred ninety-four".