131202105 has 8 divisors (see below), whose sum is σ = 209923392. Its totient is φ = 69974448.

The previous prime is 131202089. The next prime is 131202139. The reversal of 131202105 is 501202131.

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

It is not a de Polignac number, because 131202105 - 2⁴ = 131202089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 8746807 = 131202105 / (1 + 3 + 1 + 2 + 0 + 2 + 1 + 0 + 5).

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 in 7 ways as a sum of consecutive naturals, for example, 4373389 + ... + 4373418.

It is an arithmetic number, because the mean of its divisors is an integer number (26240424).

Almost surely, 2^131202105 is an apocalyptic number.

131202105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131202105 is a deficient number, since it is larger than the sum of its proper divisors (78721287).

131202105 is an equidigital number, since it uses as much as digits as its factorization.

131202105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8746815.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 131202105 is about 11454.3487374883. The cubic root of 131202105 is about 508.1363546283.

Adding to 131202105 its reverse (501202131), we get a palindrome (632404236).

It can be divided in two parts, 13120 and 2105, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 131202105 in words is "one hundred thirty-one million, two hundred two thousand, one hundred five".