190680569 has 2 divisors, whose sum is σ = 190680570. Its totient is φ = 190680568.

The previous prime is 190680559. The next prime is 190680601. The reversal of 190680569 is 965086091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130416400 + 60264169 = 11420^2 + 7763^2 .

It is an emirp because it is prime and its reverse (965086091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190680569 is a prime.

It is a super-2 number, since 2×190680569² = 72718158788327522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (190680509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95340284 + 95340285.

It is an arithmetic number, because the mean of its divisors is an integer number (95340285).

Almost surely, 2^190680569 is an apocalyptic number.

It is an amenable number.

190680569 is a deficient number, since it is larger than the sum of its proper divisors (1).

190680569 is an equidigital number, since it uses as much as digits as its factorization.

190680569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 190680569 is about 13808.7135171963. The cubic root of 190680569 is about 575.5752971814.

The spelling of 190680569 in words is "one hundred ninety million, six hundred eighty thousand, five hundred sixty-nine".