200156906 has 16 divisors (see below), whose sum is σ = 319593600. Its totient is φ = 93744288.

The previous prime is 200156897. The next prime is 200156909. The reversal of 200156906 is 609651002.

It is not an unprimeable number, because it can be changed into a prime (200156909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26210 + ... + 32973.

It is an arithmetic number, because the mean of its divisors is an integer number (19974600).

Almost surely, 2^200156906 is an apocalyptic number.

200156906 is a deficient number, since it is larger than the sum of its proper divisors (119436694).

200156906 is a wasteful number, since it uses less digits than its factorization.

200156906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59293.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 200156906 is about 14147.6820009498. The cubic root of 200156906 is about 584.9564396425.

The spelling of 200156906 in words is "two hundred million, one hundred fifty-six thousand, nine hundred six".