19068931 has 8 divisors (see below), whose sum is σ = 21819744. Its totient is φ = 16324800.

The previous prime is 19068911. The next prime is 19068943. The reversal of 19068931 is 13986091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19068931 is a prime.

It is a super-2 number, since 2×19068931² = 727248258965522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19068911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9081 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (2727468).

Almost surely, 2^19068931 is an apocalyptic number.

19068931 is a deficient number, since it is larger than the sum of its proper divisors (2750813).

19068931 is a wasteful number, since it uses less digits than its factorization.

19068931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 19068931 is about 4366.7987130162. The cubic root of 19068931 is about 267.1624694425.

The spelling of 19068931 in words is "nineteen million, sixty-eight thousand, nine hundred thirty-one".