202581441 has 6 divisors (see below), whose sum is σ = 292617650. Its totient is φ = 135054288.

The previous prime is 202581437. The next prime is 202581473. The reversal of 202581441 is 144185202.

It can be written as a sum of positive squares in only one way, i.e., 139712400 + 62869041 = 11820^2 + 7929^2 .

It is not a de Polignac number, because 202581441 - 2² = 202581437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202581481) 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 5 ways as a sum of consecutive naturals, for example, 11254516 + ... + 11254533.

Almost surely, 2^202581441 is an apocalyptic number.

It is an amenable number.

202581441 is a deficient number, since it is larger than the sum of its proper divisors (90036209).

202581441 is a wasteful number, since it uses less digits than its factorization.

202581441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22509055 (or 22509052 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 202581441 is about 14233.1107281578. The cubic root of 202581441 is about 587.3088592625.

The spelling of 202581441 in words is "two hundred two million, five hundred eighty-one thousand, four hundred forty-one".