202251993 has 8 divisors (see below), whose sum is σ = 272918688. Its totient is φ = 133209984.

The previous prime is 202251989. The next prime is 202252019. The reversal of 202251993 is 399152202.

202251993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202251993 - 2² = 202251989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202252993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405880 + ... + 406377.

It is an arithmetic number, because the mean of its divisors is an integer number (34114836).

Almost surely, 2^202251993 is an apocalyptic number.

It is an amenable number.

202251993 is a deficient number, since it is larger than the sum of its proper divisors (70666695).

202251993 is an equidigital number, since it uses as much as digits as its factorization.

202251993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812343.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 202251993 is about 14221.5327233038. The cubic root of 202251993 is about 586.9903162452.

The spelling of 202251993 in words is "two hundred two million, two hundred fifty-one thousand, nine hundred ninety-three".