20119469 has 4 divisors (see below), whose sum is σ = 20171580. Its totient is φ = 20067360.

The previous prime is 20119459. The next prime is 20119487. The reversal of 20119469 is 96491102.

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 2788900 + 17330569 = 1670^2 + 4163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20119469 is a prime.

It is a super-2 number, since 2×20119469² = 809586065683922, 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 (20119439) 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 3 ways as a sum of consecutive naturals, for example, 25472 + ... + 26249.

It is an arithmetic number, because the mean of its divisors is an integer number (5042895).

Almost surely, 2^20119469 is an apocalyptic number.

It is an amenable number.

20119469 is a deficient number, since it is larger than the sum of its proper divisors (52111).

20119469 is an equidigital number, since it uses as much as digits as its factorization.

20119469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52110.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 20119469 is about 4485.4731077112. The cubic root of 20119469 is about 271.9811703012.

The spelling of 20119469 in words is "twenty million, one hundred nineteen thousand, four hundred sixty-nine".