190238569 has 2 divisors, whose sum is σ = 190238570. Its totient is φ = 190238568.

The previous prime is 190238549. The next prime is 190238641. The reversal of 190238569 is 965832091.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124434025 + 65804544 = 11155^2 + 8112^2 .

It is a cyclic number.

It is not a de Polignac number, because 190238569 - 2¹⁷ = 190107497 is a prime.

It is a super-2 number, since 2×190238569² = 72381426270335522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190238549) 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, 95119284 + 95119285.

It is an arithmetic number, because the mean of its divisors is an integer number (95119285).

Almost surely, 2^190238569 is an apocalyptic number.

It is an amenable number.

190238569 is a deficient number, since it is larger than the sum of its proper divisors (1).

190238569 is an equidigital number, since it uses as much as digits as its factorization.

190238569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 190238569 is about 13792.6998444830. The cubic root of 190238569 is about 575.1302228056.

The spelling of 190238569 in words is "one hundred ninety million, two hundred thirty-eight thousand, five hundred sixty-nine".