205151413 has 8 divisors (see below), whose sum is σ = 210634200. Its totient is φ = 199691520.

The previous prime is 205151399. The next prime is 205151431. The reversal of 205151413 is 314151502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289444 + 204861969 = 538^2 + 14313^2 .

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 205151413 - 2¹⁷ = 205020341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205151813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13263 + ... + 24211.

It is an arithmetic number, because the mean of its divisors is an integer number (26329275).

Almost surely, 2^205151413 is an apocalyptic number.

It is an amenable number.

205151413 is a deficient number, since it is larger than the sum of its proper divisors (5482787).

205151413 is a wasteful number, since it uses less digits than its factorization.

205151413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11447.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 205151413 is about 14323.1076586054. The cubic root of 205151413 is about 589.7819868646.

The spelling of 205151413 in words is "two hundred five million, one hundred fifty-one thousand, four hundred thirteen".