202140002 has 4 divisors (see below), whose sum is σ = 303210006. Its totient is φ = 101070000.

The previous prime is 202139999. The next prime is 202140007. The reversal of 202140002 is 200041202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 177449041 + 24690961 = 13321^2 + 4969^2 .

It is not an unprimeable number, because it can be changed into a 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, 50534999 + ... + 50535002.

Almost surely, 2^202140002 is an apocalyptic number.

202140002 is a deficient number, since it is larger than the sum of its proper divisors (101070004).

202140002 is a wasteful number, since it uses less digits than its factorization.

202140002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101070003.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 202140002 is about 14217.5948036227. The cubic root of 202140002 is about 586.8819534570.

Adding to 202140002 its reverse (200041202), we get a palindrome (402181204).

The spelling of 202140002 in words is "two hundred two million, one hundred forty thousand, two".