19125668 has 6 divisors (see below), whose sum is σ = 33469926. Its totient is φ = 9562832.

The previous prime is 19125661. The next prime is 19125671. The reversal of 19125668 is 86652191.

It can be written as a sum of positive squares in only one way, i.e., 18472804 + 652864 = 4298^2 + 808^2 .

It is not an unprimeable number, because it can be changed into a prime (19125661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2390705 + ... + 2390712.

It is an arithmetic number, because the mean of its divisors is an integer number (5578321).

Almost surely, 2^19125668 is an apocalyptic number.

It is an amenable number.

19125668 is a deficient number, since it is larger than the sum of its proper divisors (14344258).

19125668 is a wasteful number, since it uses less digits than its factorization.

19125668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4781421 (or 4781419 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 19125668 is about 4373.2902945037. The cubic root of 19125668 is about 267.4271755643.

The spelling of 19125668 in words is "nineteen million, one hundred twenty-five thousand, six hundred sixty-eight".