202143445 has 8 divisors (see below), whose sum is σ = 277225344. Its totient is φ = 138612624.

The previous prime is 202143433. The next prime is 202143463. The reversal of 202143445 is 544341202.

It is a happy number.

202143445 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 a cyclic number.

It is not a de Polignac number, because 202143445 - 2⁷ = 202143317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2887729 + ... + 2887798.

It is an arithmetic number, because the mean of its divisors is an integer number (34653168).

Almost surely, 2^202143445 is an apocalyptic number.

It is an amenable number.

202143445 is a deficient number, since it is larger than the sum of its proper divisors (75081899).

202143445 is an equidigital number, since it uses as much as digits as its factorization.

202143445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775539.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 202143445 is about 14217.7158854719. The cubic root of 202143445 is about 586.8852855091.

Adding to 202143445 its reverse (544341202), we get a palindrome (746484647).

The spelling of 202143445 in words is "two hundred two million, one hundred forty-three thousand, four hundred forty-five".