190945269 has 24 divisors (see below), whose sum is σ = 301086240. Its totient is φ = 120594096.

The previous prime is 190945259. The next prime is 190945277. The reversal of 190945269 is 962549091.

190945269 is a `hidden beast` number, since 190 + 9 + 452 + 6 + 9 = 666.

It is not a de Polignac number, because 190945269 - 2⁷ = 190945141 is a prime.

It is a super-2 number, since 2×190945269² = 72920191506964722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190945259) 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 in 23 ways as a sum of consecutive naturals, for example, 16062 + ... + 25295.

It is an arithmetic number, because the mean of its divisors is an integer number (12545260).

Almost surely, 2^190945269 is an apocalyptic number.

190945269 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

190945269 is a deficient number, since it is larger than the sum of its proper divisors (110140971).

190945269 is an equidigital number, since it uses as much as digits as its factorization.

190945269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41391 (or 41379 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 190945269 is about 13818.2947211297. The cubic root of 190945269 is about 575.8415091284.

The spelling of 190945269 in words is "one hundred ninety million, nine hundred forty-five thousand, two hundred sixty-nine".