190159009987 has 2 divisors, whose sum is σ = 190159009988. Its totient is φ = 190159009986.

The previous prime is 190159009973. The next prime is 190159010059. The reversal of 190159009987 is 789900951091.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190159009987 - 2³⁵ = 155799271619 is a prime.

It is not a weakly prime, because it can be changed into another prime (190159009787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95079504993 + 95079504994.

It is an arithmetic number, because the mean of its divisors is an integer number (95079504994).

Almost surely, 2^190159009987 is an apocalyptic number.

190159009987 is a deficient number, since it is larger than the sum of its proper divisors (1).

190159009987 is an equidigital number, since it uses as much as digits as its factorization.

190159009987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 58.

The spelling of 190159009987 in words is "one hundred ninety billion, one hundred fifty-nine million, nine thousand, nine hundred eighty-seven".