19145912 has 16 divisors (see below), whose sum is σ = 36174600. Its totient is φ = 9499360.

The previous prime is 19145899. The next prime is 19145923. The reversal of 19145912 is 21954191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8087 + ... + 10182.

Almost surely, 2^19145912 is an apocalyptic number.

It is an amenable number.

19145912 is a deficient number, since it is larger than the sum of its proper divisors (17028688).

19145912 is a wasteful number, since it uses less digits than its factorization.

19145912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18406 (or 18402 counting only the distinct ones).

The product of its digits is 3240, while the sum is 32.

The square root of 19145912 is about 4375.6041868524. The cubic root of 19145912 is about 267.5214970932.

The spelling of 19145912 in words is "nineteen million, one hundred forty-five thousand, nine hundred twelve".