19235939 has 2 divisors, whose sum is σ = 19235940. Its totient is φ = 19235938.

The previous prime is 19235933. The next prime is 19235941. The reversal of 19235939 is 93953291.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19235939 is a prime.

Together with 19235941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 19235896 and 19235905.

It is not a weakly prime, because it can be changed into another prime (19235933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9617969 + 9617970.

It is an arithmetic number, because the mean of its divisors is an integer number (9617970).

Almost surely, 2^19235939 is an apocalyptic number.

19235939 is a deficient number, since it is larger than the sum of its proper divisors (1).

19235939 is an equidigital number, since it uses as much as digits as its factorization.

19235939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65610, while the sum is 41.

The square root of 19235939 is about 4385.8795013087. The cubic root of 19235939 is about 267.9401505547.

It can be divided in two parts, 192359 and 39, that multiplied together give a triangular number (7502001 = T₃₈₇₃).

The spelling of 19235939 in words is "nineteen million, two hundred thirty-five thousand, nine hundred thirty-nine".