208070146 has 8 divisors (see below), whose sum is σ = 317221884. Its totient is φ = 102329520.

The previous prime is 208070111. The next prime is 208070147. The reversal of 208070146 is 641070802.

It can be written as a sum of positive squares in 2 ways, for example, as 193515921 + 14554225 = 13911^2 + 3815^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×208070146² = 86586371312922632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (208070147) 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, 852625 + ... + 852868.

Almost surely, 2^208070146 is an apocalyptic number.

208070146 is a deficient number, since it is larger than the sum of its proper divisors (109151738).

208070146 is a wasteful number, since it uses less digits than its factorization.

208070146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705556.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 208070146 is about 14424.6367718567. The cubic root of 208070146 is about 592.5658110832.

The spelling of 208070146 in words is "two hundred eight million, seventy thousand, one hundred forty-six".