20040133459 has 2 divisors, whose sum is σ = 20040133460. Its totient is φ = 20040133458.

The previous prime is 20040133417. The next prime is 20040133483. The reversal of 20040133459 is 95433104002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20040133459 - 2⁷ = 20040133331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20040133459.

It is not a weakly prime, because it can be changed into another prime (20040133159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020066729 + 10020066730.

It is an arithmetic number, because the mean of its divisors is an integer number (10020066730).

Almost surely, 2^20040133459 is an apocalyptic number.

20040133459 is a deficient number, since it is larger than the sum of its proper divisors (1).

20040133459 is an equidigital number, since it uses as much as digits as its factorization.

20040133459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 20040133459 in words is "twenty billion, forty million, one hundred thirty-three thousand, four hundred fifty-nine".