526161906 has 40 divisors (see below), whose sum is σ = 1219658220. Its totient is φ = 169337952.

The previous prime is 526161871. The next prime is 526161943. The reversal of 526161906 is 609161625.

It can be written as a sum of positive squares in 2 ways, for example, as 466948881 + 59213025 = 21609^2 + 7695^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51301 + ... + 60696.

Almost surely, 2^526161906 is an apocalyptic number.

526161906 is an abundant number, since it is smaller than the sum of its proper divisors (693496314).

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

526161906 is a wasteful number, since it uses less digits than its factorization.

526161906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112040 (or 112031 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 526161906 is about 22938.2193293202. The cubic root of 526161906 is about 807.3090122685.

The spelling of 526161906 in words is "five hundred twenty-six million, one hundred sixty-one thousand, nine hundred six".