19340903 has 2 divisors, whose sum is σ = 19340904. Its totient is φ = 19340902.

The previous prime is 19340887. The next prime is 19340911. The reversal of 19340903 is 30904391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19340903 - 2⁴ = 19340887 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19340933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9670451 + 9670452.

It is an arithmetic number, because the mean of its divisors is an integer number (9670452).

Almost surely, 2^19340903 is an apocalyptic number.

19340903 is a deficient number, since it is larger than the sum of its proper divisors (1).

19340903 is an equidigital number, since it uses as much as digits as its factorization.

19340903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 19340903 is about 4397.8293509412. The cubic root of 19340903 is about 268.4266196576.

The spelling of 19340903 in words is "nineteen million, three hundred forty thousand, nine hundred three".