205743051 has 16 divisors (see below), whose sum is σ = 313044000. Its totient is φ = 133454304.

The previous prime is 205743047. The next prime is 205743053. The reversal of 205743051 is 150347502.

It is a happy number.

205743051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205743051 - 2² = 205743047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (205743053) 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, 101976 + ... + 103973.

It is an arithmetic number, because the mean of its divisors is an integer number (19565250).

Almost surely, 2^205743051 is an apocalyptic number.

205743051 is a deficient number, since it is larger than the sum of its proper divisors (107300949).

205743051 is a wasteful number, since it uses less digits than its factorization.

205743051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205995 (or 205989 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 205743051 is about 14343.7460588230. The cubic root of 205743051 is about 590.3484019039.

The spelling of 205743051 in words is "two hundred five million, seven hundred forty-three thousand, fifty-one".