202140452 has 12 divisors (see below), whose sum is σ = 353913756. Its totient is φ = 101022240.

The previous prime is 202140443. The next prime is 202140461. The reversal of 202140452 is 254041202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (202140443) and next prime (202140461).

It can be written as a sum of positive squares in 2 ways, for example, as 66324736 + 135815716 = 8144^2 + 11654^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1499 + ... + 20162.

It is an arithmetic number, because the mean of its divisors is an integer number (29492813).

Almost surely, 2^202140452 is an apocalyptic number.

It is an amenable number.

202140452 is a deficient number, since it is larger than the sum of its proper divisors (151773304).

202140452 is a wasteful number, since it uses less digits than its factorization.

202140452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23998 (or 23996 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 202140452 is about 14217.6106290755. The cubic root of 202140452 is about 586.8823889582.

Adding to 202140452 its reverse (254041202), we get a palindrome (456181654).

The spelling of 202140452 in words is "two hundred two million, one hundred forty thousand, four hundred fifty-two".