19717132 has 12 divisors (see below), whose sum is σ = 34717816. Its totient is φ = 9797760.

The previous prime is 19717109. The next prime is 19717157. The reversal of 19717132 is 23171791.

It is a junction number, because it is equal to n+sod(n) for n = 19717094 and 19717103.

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 in 3 ways as a sum of consecutive naturals, for example, 14469 + ... + 15772.

Almost surely, 2^19717132 is an apocalyptic number.

It is an amenable number.

19717132 is a deficient number, since it is larger than the sum of its proper divisors (15000684).

19717132 is a wasteful number, since it uses less digits than its factorization.

19717132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30408 (or 30406 counting only the distinct ones).

The product of its digits is 2646, while the sum is 31.

The square root of 19717132 is about 4440.3977299337. The cubic root of 19717132 is about 270.1559775479.

The spelling of 19717132 in words is "nineteen million, seven hundred seventeen thousand, one hundred thirty-two".