19609136 has 10 divisors (see below), whose sum is σ = 37992732. Its totient is φ = 9804560.

The previous prime is 19609129. The next prime is 19609151. The reversal of 19609136 is 63190691.

It is a junction number, because it is equal to n+sod(n) for n = 19609096 and 19609105.

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, 612770 + ... + 612801.

Almost surely, 2^19609136 is an apocalyptic number.

19609136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19609136 is a deficient number, since it is larger than the sum of its proper divisors (18383596).

19609136 is a wasteful number, since it uses less digits than its factorization.

19609136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225579 (or 1225573 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 19609136 is about 4428.2204100519. The cubic root of 19609136 is about 269.6618354408.

The spelling of 19609136 in words is "nineteen million, six hundred nine thousand, one hundred thirty-six".