208274045 has 16 divisors (see below), whose sum is σ = 286053120. Its totient is φ = 142606464.

The previous prime is 208274009. The next prime is 208274051. The reversal of 208274045 is 540472802.

It is not a de Polignac number, because 208274045 - 2⁶ = 208273981 is a prime.

It is a Curzon number.

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, 22001 + ... + 30009.

It is an arithmetic number, because the mean of its divisors is an integer number (17878320).

Almost surely, 2^208274045 is an apocalyptic number.

It is an amenable number.

208274045 is a deficient number, since it is larger than the sum of its proper divisors (77779075).

208274045 is an equidigital number, since it uses as much as digits as its factorization.

208274045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8764.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 208274045 is about 14431.7027754870. The cubic root of 208274045 is about 592.7593101394.

The spelling of 208274045 in words is "two hundred eight million, two hundred seventy-four thousand, forty-five".