202541641 has 2 divisors, whose sum is σ = 202541642. Its totient is φ = 202541640.

The previous prime is 202541627. The next prime is 202541699. The reversal of 202541641 is 146145202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113635600 + 88906041 = 10660^2 + 9429^2 .

It is a cyclic number.

It is not a de Polignac number, because 202541641 - 2²³ = 194153033 is a prime.

It is not a weakly prime, because it can be changed into another prime (202541741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101270820 + 101270821.

It is an arithmetic number, because the mean of its divisors is an integer number (101270821).

Almost surely, 2^202541641 is an apocalyptic number.

It is an amenable number.

202541641 is a deficient number, since it is larger than the sum of its proper divisors (1).

202541641 is an equidigital number, since it uses as much as digits as its factorization.

202541641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 202541641 is about 14231.7125111492. The cubic root of 202541641 is about 587.2703950224.

Adding to 202541641 its reverse (146145202), we get a palindrome (348686843).

The spelling of 202541641 in words is "two hundred two million, five hundred forty-one thousand, six hundred forty-one".