202031345 has 8 divisors (see below), whose sum is σ = 242808360. Its totient is φ = 161377920.

The previous prime is 202031341. The next prime is 202031363. The reversal of 202031345 is 543130202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8737936 + 193293409 = 2956^2 + 13903^2 .

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

It is not a de Polignac number, because 202031345 - 2² = 202031341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202031341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27260 + ... + 33869.

It is an arithmetic number, because the mean of its divisors is an integer number (30351045).

Almost surely, 2^202031345 is an apocalyptic number.

It is an amenable number.

202031345 is a deficient number, since it is larger than the sum of its proper divisors (40777015).

202031345 is an equidigital number, since it uses as much as digits as its factorization.

202031345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61795.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 202031345 is about 14213.7730740293. The cubic root of 202031345 is about 586.7767783949.

Adding to 202031345 its reverse (543130202), we get a palindrome (745161547).

The spelling of 202031345 in words is "two hundred two million, thirty-one thousand, three hundred forty-five".