208151070 has 32 divisors (see below), whose sum is σ = 500849568. Its totient is φ = 55363968.

The previous prime is 208151057. The next prime is 208151101. The reversal of 208151070 is 70151802.

It is a self number, because there is not a number n which added to its sum of digits gives 208151070.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3172 + ... + 20648.

It is an arithmetic number, because the mean of its divisors is an integer number (15651549).

Almost surely, 2^208151070 is an apocalyptic number.

208151070 is an abundant number, since it is smaller than the sum of its proper divisors (292698498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208151070 is a wasteful number, since it uses less digits than its factorization.

208151070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17884.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 208151070 is about 14427.4415611362. The cubic root of 208151070 is about 592.6426226477.

The spelling of 208151070 in words is "two hundred eight million, one hundred fifty-one thousand, seventy".