200821157 has 16 divisors (see below), whose sum is σ = 210470400. Its totient is φ = 191452800.

The previous prime is 200821147. The next prime is 200821171. The reversal of 200821157 is 751128002.

It is a cyclic number.

It is not a de Polignac number, because 200821157 - 2⁴ = 200821141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200821147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433508 + ... + 433970.

It is an arithmetic number, because the mean of its divisors is an integer number (13154400).

Almost surely, 2^200821157 is an apocalyptic number.

It is an amenable number.

200821157 is a deficient number, since it is larger than the sum of its proper divisors (9649243).

200821157 is a wasteful number, since it uses less digits than its factorization.

200821157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 200821157 is about 14171.1381688275. The cubic root of 200821157 is about 585.6028139780.

Adding to 200821157 its reverse (751128002), we get a palindrome (951949159).

The spelling of 200821157 in words is "two hundred million, eight hundred twenty-one thousand, one hundred fifty-seven".