133131302 has 4 divisors (see below), whose sum is σ = 199696956. Its totient is φ = 66565650.

The previous prime is 133131293. The next prime is 133131343. The reversal of 133131302 is 203131331.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33282824 + ... + 33282827.

It is an arithmetic number, because the mean of its divisors is an integer number (49924239).

Almost surely, 2^133131302 is an apocalyptic number.

133131302 is a deficient number, since it is larger than the sum of its proper divisors (66565654).

133131302 is an equidigital number, since it uses as much as digits as its factorization.

133131302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66565653.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133131302 is about 11538.2538540283. The cubic root of 133131302 is about 510.6147936328.

Adding to 133131302 its reverse (203131331), we get a palindrome (336262633).

The spelling of 133131302 in words is "one hundred thirty-three million, one hundred thirty-one thousand, three hundred two".