205454134 has 8 divisors (see below), whose sum is σ = 308246400. Its totient is φ = 102705336.

The previous prime is 205454131. The next prime is 205454141. The reversal of 205454134 is 431454502.

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

It is a super-2 number, since 2×205454134² = 84422802355379912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205454131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6507 + ... + 21289.

It is an arithmetic number, because the mean of its divisors is an integer number (38530800).

Almost surely, 2^205454134 is an apocalyptic number.

205454134 is a deficient number, since it is larger than the sum of its proper divisors (102792266).

205454134 is a wasteful number, since it uses less digits than its factorization.

205454134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21734.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 205454134 is about 14333.6713370999. The cubic root of 205454134 is about 590.0719379869.

The spelling of 205454134 in words is "two hundred five million, four hundred fifty-four thousand, one hundred thirty-four".