205013451 has 8 divisors (see below), whose sum is σ = 274862224. Its totient is φ = 135920160.

The previous prime is 205013359. The next prime is 205013491. The reversal of 205013451 is 154310502.

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

It is not a de Polignac number, because 205013451 - 2¹⁸ = 204751307 is a prime.

It is a super-4 number, since 4×205013451⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205013491) 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, 188236 + ... + 189321.

It is an arithmetic number, because the mean of its divisors is an integer number (34357778).

Almost surely, 2^205013451 is an apocalyptic number.

205013451 is a deficient number, since it is larger than the sum of its proper divisors (69848773).

205013451 is a wasteful number, since it uses less digits than its factorization.

205013451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377741.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 205013451 is about 14318.2907848667. The cubic root of 205013451 is about 589.6497499838.

Adding to 205013451 its reverse (154310502), we get a palindrome (359323953).

The spelling of 205013451 in words is "two hundred five million, thirteen thousand, four hundred fifty-one".