19141999 has 2 divisors, whose sum is σ = 19142000. Its totient is φ = 19141998.

The previous prime is 19141961. The next prime is 19142021. The reversal of 19141999 is 99914191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19141999 - 2²¹ = 17044847 is a prime.

It is a super-2 number, since 2×19141999² = 732832251432002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19141939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9570999 + 9571000.

It is an arithmetic number, because the mean of its divisors is an integer number (9571000).

Almost surely, 2^19141999 is an apocalyptic number.

19141999 is a deficient number, since it is larger than the sum of its proper divisors (1).

19141999 is an equidigital number, since it uses as much as digits as its factorization.

19141999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 43.

The square root of 19141999 is about 4375.1570257535. The cubic root of 19141999 is about 267.5032706969.

The spelling of 19141999 in words is "nineteen million, one hundred forty-one thousand, nine hundred ninety-nine".