131200115 has 4 divisors (see below), whose sum is σ = 157440144. Its totient is φ = 104960088.

The previous prime is 131200109. The next prime is 131200117. The reversal of 131200115 is 511002131.

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

It is a cyclic number.

It is not a de Polignac number, because 131200115 - 2⁴ = 131200099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131200115.

It is not an unprimeable number, because it can be changed into a prime (131200117) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13120007 + ... + 13120016.

It is an arithmetic number, because the mean of its divisors is an integer number (39360036).

Almost surely, 2^131200115 is an apocalyptic number.

131200115 is a deficient number, since it is larger than the sum of its proper divisors (26240029).

131200115 is an equidigital number, since it uses as much as digits as its factorization.

131200115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26240028.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 131200115 is about 11454.2618705877. The cubic root of 131200115 is about 508.1337855728.

Adding to 131200115 its reverse (511002131), we get a palindrome (642202246).

The spelling of 131200115 in words is "one hundred thirty-one million, two hundred thousand, one hundred fifteen".