131002266 has 8 divisors (see below), whose sum is σ = 262004544. Its totient is φ = 43667420.

The previous prime is 131002259. The next prime is 131002271. The reversal of 131002266 is 662200131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

131002266 is an admirable number.

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 in 3 ways as a sum of consecutive naturals, for example, 10916850 + ... + 10916861.

It is an arithmetic number, because the mean of its divisors is an integer number (32750568).

Almost surely, 2^131002266 is an apocalyptic number.

131002266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131002266 is a wasteful number, since it uses less digits than its factorization.

131002266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21833716.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 131002266 is about 11445.6221325011. The cubic root of 131002266 is about 507.8782361563.

Adding to 131002266 its reverse (662200131), we get a palindrome (793202397).

The spelling of 131002266 in words is "one hundred thirty-one million, two thousand, two hundred sixty-six".