205461542 has 32 divisors (see below), whose sum is σ = 368038944. Its totient is φ = 84787200.

The previous prime is 205461539. The next prime is 205461551. The reversal of 205461542 is 245164502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11558 + ... + 23334.

It is an arithmetic number, because the mean of its divisors is an integer number (11501217).

Almost surely, 2^205461542 is an apocalyptic number.

205461542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

205461542 is a deficient number, since it is larger than the sum of its proper divisors (162577402).

205461542 is a wasteful number, since it uses less digits than its factorization.

205461542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11864.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 205461542 is about 14333.9297472814. The cubic root of 205461542 is about 590.0790299191.

The spelling of 205461542 in words is "two hundred five million, four hundred sixty-one thousand, five hundred forty-two".