20014009 has 2 divisors, whose sum is σ = 20014010. Its totient is φ = 20014008.

The previous prime is 20013997. The next prime is 20014021. The reversal of 20014009 is 90041002.

It is a balanced prime because it is at equal distance from previous prime (20013997) and next prime (20014021).

It can be written as a sum of positive squares in only one way, i.e., 12938409 + 7075600 = 3597^2 + 2660^2 .

It is a cyclic number.

It is not a de Polignac number, because 20014009 - 2⁷ = 20013881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20013983 and 20014001.

It is not a weakly prime, because it can be changed into another prime (20014069) 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 as a sum of consecutive naturals, namely, 10007004 + 10007005.

It is an arithmetic number, because the mean of its divisors is an integer number (10007005).

Almost surely, 2^20014009 is an apocalyptic number.

It is an amenable number.

20014009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20014009 is an equidigital number, since it uses as much as digits as its factorization.

20014009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 20014009 is about 4473.7019346398. The cubic root of 20014009 is about 271.5051239951.

The spelling of 20014009 in words is "twenty million, fourteen thousand, nine".