131002202 has 4 divisors (see below), whose sum is σ = 196503306. Its totient is φ = 65501100.

The previous prime is 131002177. The next prime is 131002211. The reversal of 131002202 is 202200131.

It is a happy number.

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., 118178641 + 12823561 = 10871^2 + 3581^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750549 + ... + 32750552.

Almost surely, 2^131002202 is an apocalyptic number.

131002202 is a deficient number, since it is larger than the sum of its proper divisors (65501104).

131002202 is an equidigital number, since it uses as much as digits as its factorization.

131002202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65501103.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 131002202 is about 11445.6193366720. The cubic root of 131002202 is about 507.8781534498.

Adding to 131002202 its reverse (202200131), we get a palindrome (333202333).

The spelling of 131002202 in words is "one hundred thirty-one million, two thousand, two hundred two".