208020953 has 4 divisors (see below), whose sum is σ = 237738240. Its totient is φ = 178303668.

The previous prime is 208020931. The next prime is 208020977. The reversal of 208020953 is 359020802.

208020953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 208020953 - 2⁶ = 208020889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208020053) 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, 14858633 + ... + 14858646.

It is an arithmetic number, because the mean of its divisors is an integer number (59434560).

Almost surely, 2^208020953 is an apocalyptic number.

It is an amenable number.

208020953 is a deficient number, since it is larger than the sum of its proper divisors (29717287).

208020953 is an equidigital number, since it uses as much as digits as its factorization.

208020953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29717286.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 208020953 is about 14422.9314981386. The cubic root of 208020953 is about 592.5191082635.

The spelling of 208020953 in words is "two hundred eight million, twenty thousand, nine hundred fifty-three".