202145101 has 2 divisors, whose sum is σ = 202145102. Its totient is φ = 202145100.

The previous prime is 202145093. The next prime is 202145131. The reversal of 202145101 is 101541202.

202145101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118788201 + 83356900 = 10899^2 + 9130^2 .

It is a cyclic number.

It is not a de Polignac number, because 202145101 - 2³ = 202145093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202145131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101072550 + 101072551.

It is an arithmetic number, because the mean of its divisors is an integer number (101072551).

Almost surely, 2^202145101 is an apocalyptic number.

It is an amenable number.

202145101 is a deficient number, since it is larger than the sum of its proper divisors (1).

202145101 is an equidigital number, since it uses as much as digits as its factorization.

202145101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 202145101 is about 14217.7741225552. The cubic root of 202145101 is about 586.8868881324.

Adding to 202145101 its reverse (101541202), we get a palindrome (303686303).

The spelling of 202145101 in words is "two hundred two million, one hundred forty-five thousand, one hundred one".