19145996 has 18 divisors (see below), whose sum is σ = 35364420. Its totient is φ = 9068472.

The previous prime is 19145969. The next prime is 19146007. The reversal of 19145996 is 69954191.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5186 + ... + 8073.

It is an arithmetic number, because the mean of its divisors is an integer number (1964690).

Almost surely, 2^19145996 is an apocalyptic number.

It is an amenable number.

19145996 is a deficient number, since it is larger than the sum of its proper divisors (16218424).

19145996 is a wasteful number, since it uses less digits than its factorization.

19145996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13301 (or 13280 counting only the distinct ones).

The product of its digits is 87480, while the sum is 44.

The square root of 19145996 is about 4375.6137855163. The cubic root of 19145996 is about 267.5218883303.

The spelling of 19145996 in words is "nineteen million, one hundred forty-five thousand, nine hundred ninety-six".