202144445 has 8 divisors (see below), whose sum is σ = 243976536. Its totient is φ = 160780096.

The previous prime is 202144429. The next prime is 202144451. The reversal of 202144445 is 544441202.

It can be written as a sum of positive squares in 4 ways, for example, as 119661721 + 82482724 = 10939^2 + 9082^2 .

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 202144445 - 2⁴ = 202144429 is a prime.

It is a Duffinian number.

It is a Curzon 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, 115982 + ... + 117711.

It is an arithmetic number, because the mean of its divisors is an integer number (30497067).

Almost surely, 2^202144445 is an apocalyptic number.

It is an amenable number.

202144445 is a deficient number, since it is larger than the sum of its proper divisors (41832091).

202144445 is a wasteful number, since it uses less digits than its factorization.

202144445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233871.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 202144445 is about 14217.7510528213. The cubic root of 202144445 is about 586.8862532779.

Adding to 202144445 its reverse (544441202), we get a palindrome (746585647).

The spelling of 202144445 in words is "two hundred two million, one hundred forty-four thousand, four hundred forty-five".