190849613 has 2 divisors, whose sum is σ = 190849614. Its totient is φ = 190849612.

The previous prime is 190849591. The next prime is 190849643. The reversal of 190849613 is 316948091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134629609 + 56220004 = 11603^2 + 7498^2 .

It is an emirp because it is prime and its reverse (316948091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190849613 - 2¹⁸ = 190587469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190849643) 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, 95424806 + 95424807.

It is an arithmetic number, because the mean of its divisors is an integer number (95424807).

Almost surely, 2^190849613 is an apocalyptic number.

It is an amenable number.

190849613 is a deficient number, since it is larger than the sum of its proper divisors (1).

190849613 is an equidigital number, since it uses as much as digits as its factorization.

190849613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 190849613 is about 13814.8330789771. The cubic root of 190849613 is about 575.7453351543.

The spelling of 190849613 in words is "one hundred ninety million, eight hundred forty-nine thousand, six hundred thirteen".