19608131 has 2 divisors, whose sum is σ = 19608132. Its totient is φ = 19608130.

The previous prime is 19608107. The next prime is 19608139. The reversal of 19608131 is 13180691.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13180691) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19608131 is a prime.

It is a super-2 number, since 2×19608131² = 768957602626322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 19608094 and 19608103.

It is not a weakly prime, because it can be changed into another prime (19608139) by changing a digit.

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, 9804065 + 9804066.

It is an arithmetic number, because the mean of its divisors is an integer number (9804066).

Almost surely, 2^19608131 is an apocalyptic number.

19608131 is a deficient number, since it is larger than the sum of its proper divisors (1).

19608131 is an equidigital number, since it uses as much as digits as its factorization.

19608131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 19608131 is about 4428.1069318615. The cubic root of 19608131 is about 269.6572284934.

The spelling of 19608131 in words is "nineteen million, six hundred eight thousand, one hundred thirty-one".