19414931 has 2 divisors, whose sum is σ = 19414932. Its totient is φ = 19414930.

The previous prime is 19414909. The next prime is 19414937. The reversal of 19414931 is 13941491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19414931 is a prime.

It is a super-2 number, since 2×19414931² = 753879091469522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19414937) 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, 9707465 + 9707466.

It is an arithmetic number, because the mean of its divisors is an integer number (9707466).

Almost surely, 2^19414931 is an apocalyptic number.

19414931 is a deficient number, since it is larger than the sum of its proper divisors (1).

19414931 is an equidigital number, since it uses as much as digits as its factorization.

19414931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 19414931 is about 4406.2377375716. The cubic root of 19414931 is about 268.7686544830.

The spelling of 19414931 in words is "nineteen million, four hundred fourteen thousand, nine hundred thirty-one".