20076169 has 4 divisors (see below), whose sum is σ = 20133396. Its totient is φ = 20018944.

The previous prime is 20076113. The next prime is 20076181. The reversal of 20076169 is 96167002.

20076169 = T₁₄₅ + T₁₄₆ + ... + T₄₉₇.

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 3980025 + 16096144 = 1995^2 + 4012^2 .

It is a cyclic number.

It is not a de Polignac number, because 20076169 - 2⁷ = 20076041 is a prime.

It is a super-2 number, since 2×20076169² = 806105123433122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20076169.

It is not an unprimeable number, because it can be changed into a prime (20076109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28084 + ... + 28789.

It is an arithmetic number, because the mean of its divisors is an integer number (5033349).

Almost surely, 2^20076169 is an apocalyptic number.

It is an amenable number.

20076169 is a deficient number, since it is larger than the sum of its proper divisors (57227).

20076169 is an equidigital number, since it uses as much as digits as its factorization.

20076169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57226.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 20076169 is about 4480.6438153462. The cubic root of 20076169 is about 271.7859159228.

The spelling of 20076169 in words is "twenty million, seventy-six thousand, one hundred sixty-nine".