208661054 has 32 divisors (see below), whose sum is σ = 369786816. Its totient is φ = 86446080.

The previous prime is 208661029. The next prime is 208661099. The reversal of 208661054 is 450166802.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 208661054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63254 + ... + 66470.

It is an arithmetic number, because the mean of its divisors is an integer number (11555838).

Almost surely, 2^208661054 is an apocalyptic number.

208661054 is a deficient number, since it is larger than the sum of its proper divisors (161125762).

208661054 is a wasteful number, since it uses less digits than its factorization.

208661054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 208661054 is about 14445.1048455870. The cubic root of 208661054 is about 593.1262325503.

The spelling of 208661054 in words is "two hundred eight million, six hundred sixty-one thousand, fifty-four".