19372099 has 2 divisors, whose sum is σ = 19372100. Its totient is φ = 19372098.

The previous prime is 19372081. The next prime is 19372123. The reversal of 19372099 is 99027391.

It is a weak prime.

It is an emirp because it is prime and its reverse (99027391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19372099 - 2¹¹ = 19370051 is a prime.

It is not a weakly prime, because it can be changed into another prime (19372019) 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, 9686049 + 9686050.

It is an arithmetic number, because the mean of its divisors is an integer number (9686050).

Almost surely, 2^19372099 is an apocalyptic number.

19372099 is a deficient number, since it is larger than the sum of its proper divisors (1).

19372099 is an equidigital number, since it uses as much as digits as its factorization.

19372099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 19372099 is about 4401.3746716225. The cubic root of 19372099 is about 268.5708621240.

The spelling of 19372099 in words is "nineteen million, three hundred seventy-two thousand, ninety-nine".