205501459 has 2 divisors, whose sum is σ = 205501460. Its totient is φ = 205501458.

The previous prime is 205501451. The next prime is 205501561. The reversal of 205501459 is 954105502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205501459 - 2³ = 205501451 is a prime.

It is a super-2 number, since 2×205501459² = 84461699302257362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205501459.

It is not a weakly prime, because it can be changed into another prime (205501451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102750729 + 102750730.

It is an arithmetic number, because the mean of its divisors is an integer number (102750730).

Almost surely, 2^205501459 is an apocalyptic number.

205501459 is a deficient number, since it is larger than the sum of its proper divisors (1).

205501459 is an equidigital number, since it uses as much as digits as its factorization.

205501459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 205501459 is about 14335.3220752099. The cubic root of 205501459 is about 590.1172408972.

The spelling of 205501459 in words is "two hundred five million, five hundred one thousand, four hundred fifty-nine".