200421153 has 12 divisors (see below), whose sum is σ = 289638180. Its totient is φ = 133549056.

The previous prime is 200421131. The next prime is 200421157. The reversal of 200421153 is 351124002.

It can be written as a sum of positive squares in 2 ways, for example, as 84492864 + 115928289 = 9192^2 + 10767^2 .

It is not a de Polignac number, because 200421153 - 2⁹ = 200420641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200421157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20733 + ... + 28821.

It is an arithmetic number, because the mean of its divisors is an integer number (24136515).

Almost surely, 2^200421153 is an apocalyptic number.

It is an amenable number.

200421153 is a deficient number, since it is larger than the sum of its proper divisors (89217027).

200421153 is a wasteful number, since it uses less digits than its factorization.

200421153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10848 (or 10845 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 200421153 is about 14157.0178003702. The cubic root of 200421153 is about 585.2137461308.

Adding to 200421153 its reverse (351124002), we get a palindrome (551545155).

The spelling of 200421153 in words is "two hundred million, four hundred twenty-one thousand, one hundred fifty-three".