19313612 has 6 divisors (see below), whose sum is σ = 33798828. Its totient is φ = 9656804.

The previous prime is 19313587. The next prime is 19313617. The reversal of 19313612 is 21631391.

It is not an unprimeable number, because it can be changed into a prime (19313617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2414198 + ... + 2414205.

It is an arithmetic number, because the mean of its divisors is an integer number (5633138).

Almost surely, 2^19313612 is an apocalyptic number.

It is an amenable number.

19313612 is a deficient number, since it is larger than the sum of its proper divisors (14485216).

19313612 is a wasteful number, since it uses less digits than its factorization.

19313612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828407 (or 4828405 counting only the distinct ones).

The product of its digits is 972, while the sum is 26.

The square root of 19313612 is about 4394.7254749301. The cubic root of 19313612 is about 268.3003056795.

The spelling of 19313612 in words is "nineteen million, three hundred thirteen thousand, six hundred twelve".