202015641 has 16 divisors (see below), whose sum is σ = 286804800. Its totient is φ = 126041088.

The previous prime is 202015631. The next prime is 202015643. The reversal of 202015641 is 146510202.

It is not a de Polignac number, because 202015641 - 2⁶ = 202015577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202015643) 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 15 ways as a sum of consecutive naturals, for example, 1936 + ... + 20193.

It is an arithmetic number, because the mean of its divisors is an integer number (17925300).

Almost surely, 2^202015641 is an apocalyptic number.

It is an amenable number.

202015641 is a deficient number, since it is larger than the sum of its proper divisors (84789159).

202015641 is a wasteful number, since it uses less digits than its factorization.

202015641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22328.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 202015641 is about 14213.2206413606. The cubic root of 202015641 is about 586.7615745143.

Adding to 202015641 its reverse (146510202), we get a palindrome (348525843).

The spelling of 202015641 in words is "two hundred two million, fifteen thousand, six hundred forty-one".