20459107 has 2 divisors, whose sum is σ = 20459108. Its totient is φ = 20459106.

The previous prime is 20459083. The next prime is 20459111. The reversal of 20459107 is 70195402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20459107 is a prime.

It is not a weakly prime, because it can be changed into another prime (20459137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10229553 + 10229554.

It is an arithmetic number, because the mean of its divisors is an integer number (10229554).

Almost surely, 2^20459107 is an apocalyptic number.

20459107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20459107 is an equidigital number, since it uses as much as digits as its factorization.

20459107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20459107 is about 4523.1744383784. The cubic root of 20459107 is about 273.5030819804.

The spelling of 20459107 in words is "twenty million, four hundred fifty-nine thousand, one hundred seven".