205097654 has 8 divisors (see below), whose sum is σ = 308020968. Its totient is φ = 102424000.

The previous prime is 205097593. The next prime is 205097671. The reversal of 205097654 is 456790502.

It is a happy number.

205097654 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60347 + ... + 63654.

It is an arithmetic number, because the mean of its divisors is an integer number (38502621).

Almost surely, 2^205097654 is an apocalyptic number.

205097654 is a deficient number, since it is larger than the sum of its proper divisors (102923314).

205097654 is a wasteful number, since it uses less digits than its factorization.

205097654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124830.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 205097654 is about 14321.2308828536. The cubic root of 205097654 is about 589.7304657966.

The spelling of 205097654 in words is "two hundred five million, ninety-seven thousand, six hundred fifty-four".