205251351 has 16 divisors (see below), whose sum is σ = 283008384. Its totient is φ = 132241824.

The previous prime is 205251329. The next prime is 205251367. The reversal of 205251351 is 153152502.

It is a happy number.

It is not a de Polignac number, because 205251351 - 2⁹ = 205250839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205251301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020 + ... + 20286.

It is an arithmetic number, because the mean of its divisors is an integer number (17688024).

Almost surely, 2^205251351 is an apocalyptic number.

205251351 is a deficient number, since it is larger than the sum of its proper divisors (77757033).

205251351 is a wasteful number, since it uses less digits than its factorization.

205251351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19390.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 205251351 is about 14326.5959320419. The cubic root of 205251351 is about 589.8777406349.

The spelling of 205251351 in words is "two hundred five million, two hundred fifty-one thousand, three hundred fifty-one".