208147245 has 16 divisors (see below), whose sum is σ = 334730880. Its totient is φ = 110446784.

The previous prime is 208147213. The next prime is 208147253. The reversal of 208147245 is 542741802.

It is a cyclic number.

It is not a de Polignac number, because 208147245 - 2⁵ = 208147213 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 32265 + ... + 38174.

It is an arithmetic number, because the mean of its divisors is an integer number (20920680).

Almost surely, 2^208147245 is an apocalyptic number.

It is an amenable number.

208147245 is a deficient number, since it is larger than the sum of its proper divisors (126583635).

208147245 is a wasteful number, since it uses less digits than its factorization.

208147245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70644.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 208147245 is about 14427.3090006418. The cubic root of 208147245 is about 592.6389924767.

The spelling of 208147245 in words is "two hundred eight million, one hundred forty-seven thousand, two hundred forty-five".