190686113 has 2 divisors, whose sum is σ = 190686114. Its totient is φ = 190686112.

The previous prime is 190686101. The next prime is 190686131. The reversal of 190686113 is 311686091.

Together with next prime (190686131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179881744 + 10804369 = 13412^2 + 3287^2 .

It is an emirp because it is prime and its reverse (311686091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190686113 - 2¹⁴ = 190669729 is a prime.

It is a super-2 number, since 2×190686113² = 72722387382097538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190686163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95343056 + 95343057.

It is an arithmetic number, because the mean of its divisors is an integer number (95343057).

Almost surely, 2^190686113 is an apocalyptic number.

It is an amenable number.

190686113 is a deficient number, since it is larger than the sum of its proper divisors (1).

190686113 is an equidigital number, since it uses as much as digits as its factorization.

190686113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 190686113 is about 13808.9142585505. The cubic root of 190686113 is about 575.5808753735.

The spelling of 190686113 in words is "one hundred ninety million, six hundred eighty-six thousand, one hundred thirteen".