202140101 has 2 divisors, whose sum is σ = 202140102. Its totient is φ = 202140100.

The previous prime is 202140097. The next prime is 202140137. The reversal of 202140101 is 101041202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166152100 + 35988001 = 12890^2 + 5999^2 .

It is a cyclic number.

It is not a de Polignac number, because 202140101 - 2² = 202140097 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202140151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101070050 + 101070051.

It is an arithmetic number, because the mean of its divisors is an integer number (101070051).

Almost surely, 2^202140101 is an apocalyptic number.

It is an amenable number.

202140101 is a deficient number, since it is larger than the sum of its proper divisors (1).

202140101 is an equidigital number, since it uses as much as digits as its factorization.

202140101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 202140101 is about 14217.5982852238. The cubic root of 202140101 is about 586.8820492673.

Adding to 202140101 its reverse (101041202), we get a palindrome (303181303).

The spelling of 202140101 in words is "two hundred two million, one hundred forty thousand, one hundred one".