190475899 has 2 divisors, whose sum is σ = 190475900. Its totient is φ = 190475898.

The previous prime is 190475897. The next prime is 190475911. The reversal of 190475899 is 998574091.

It is a weak prime.

It is an emirp because it is prime and its reverse (998574091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190475899 - 2¹ = 190475897 is a prime.

Together with 190475897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (190475891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95237949 + 95237950.

It is an arithmetic number, because the mean of its divisors is an integer number (95237950).

Almost surely, 2^190475899 is an apocalyptic number.

190475899 is a deficient number, since it is larger than the sum of its proper divisors (1).

190475899 is an equidigital number, since it uses as much as digits as its factorization.

190475899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 190475899 is about 13801.3006271148. The cubic root of 190475899 is about 575.3692891782.

The spelling of 190475899 in words is "one hundred ninety million, four hundred seventy-five thousand, eight hundred ninety-nine".