205453385 has 8 divisors (see below), whose sum is σ = 249314760. Its totient is φ = 162515584.

The previous prime is 205453373. The next prime is 205453397. The reversal of 205453385 is 583354502.

It is an interprime number because it is at equal distance from previous prime (205453373) and next prime (205453397).

It can be written as a sum of positive squares in 4 ways, for example, as 40998409 + 164454976 = 6403^2 + 12824^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205453385 - 2⁶ = 205453321 is a prime.

It is a super-2 number, since 2×205453385² = 84422186815916450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230402 + ... + 231291.

It is an arithmetic number, because the mean of its divisors is an integer number (31164345).

Almost surely, 2^205453385 is an apocalyptic number.

It is an amenable number.

205453385 is a deficient number, since it is larger than the sum of its proper divisors (43861375).

205453385 is an equidigital number, since it uses as much as digits as its factorization.

205453385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461787.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 205453385 is about 14333.6452097853. The cubic root of 205453385 is about 590.0712209341.

The spelling of 205453385 in words is "two hundred five million, four hundred fifty-three thousand, three hundred eighty-five".