190235669 has 4 divisors (see below), whose sum is σ = 204869196. Its totient is φ = 175602144.

The previous prime is 190235663. The next prime is 190235671. The reversal of 190235669 is 966532091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98267569 + 91968100 = 9913^2 + 9590^2 .

It is a cyclic number.

It is not a de Polignac number, because 190235669 - 2⁴ = 190235653 is a prime.

It is a super-2 number, since 2×190235669² = 72379219519755122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190235663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7316744 + ... + 7316769.

It is an arithmetic number, because the mean of its divisors is an integer number (51217299).

Almost surely, 2^190235669 is an apocalyptic number.

It is an amenable number.

190235669 is a deficient number, since it is larger than the sum of its proper divisors (14633527).

190235669 is a wasteful number, since it uses less digits than its factorization.

190235669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14633526.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 190235669 is about 13792.5947160061. The cubic root of 190235669 is about 575.1273003591.

The spelling of 190235669 in words is "one hundred ninety million, two hundred thirty-five thousand, six hundred sixty-nine".