202140097 has 2 divisors, whose sum is σ = 202140098. Its totient is φ = 202140096.

The previous prime is 202140067. The next prime is 202140101. The reversal of 202140097 is 790041202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103713856 + 98426241 = 10184^2 + 9921^2 .

It is a cyclic number.

It is not a de Polignac number, because 202140097 - 2⁷ = 202139969 is a prime.

It is not a weakly prime, because it can be changed into another prime (202140007) 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 as a sum of consecutive naturals, namely, 101070048 + 101070049.

It is an arithmetic number, because the mean of its divisors is an integer number (101070049).

Almost surely, 2^202140097 is an apocalyptic number.

It is an amenable number.

202140097 is a deficient number, since it is larger than the sum of its proper divisors (1).

202140097 is an equidigital number, since it uses as much as digits as its factorization.

202140097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 202140097 is about 14217.5981445531. The cubic root of 202140097 is about 586.8820453962.

Adding to 202140097 its reverse (790041202), we get a palindrome (992181299).

It can be divided in two parts, 20214009 and 7, that added together give a square (20214016 = 4496²).

The spelling of 202140097 in words is "two hundred two million, one hundred forty thousand, ninety-seven".