200156540 has 48 divisors (see below), whose sum is σ = 426553344. Its totient is φ = 78888000.

The previous prime is 200156527. The next prime is 200156563. The reversal of 200156540 is 45651002.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 576647 + ... + 576993.

It is an arithmetic number, because the mean of its divisors is an integer number (8886528).

Almost surely, 2^200156540 is an apocalyptic number.

200156540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200156540 is an abundant number, since it is smaller than the sum of its proper divisors (226396804).

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

200156540 is a wasteful number, since it uses less digits than its factorization.

200156540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 200156540 is about 14147.6690659628. The cubic root of 200156540 is about 584.9560830986.

The spelling of 200156540 in words is "two hundred million, one hundred fifty-six thousand, five hundred forty".