131210715 has 8 divisors (see below), whose sum is σ = 209937168. Its totient is φ = 69979040.

The previous prime is 131210689. The next prime is 131210803. The reversal of 131210715 is 517012131.

It is a happy number.

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

It is not a de Polignac number, because 131210715 - 2⁸ = 131210459 is a prime.

It is a super-2 number, since 2×131210715² = 34432503461622450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131210691 and 131210700.

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, 4373676 + ... + 4373705.

It is an arithmetic number, because the mean of its divisors is an integer number (26242146).

Almost surely, 2^131210715 is an apocalyptic number.

131210715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131210715 is a deficient number, since it is larger than the sum of its proper divisors (78726453).

131210715 is an equidigital number, since it uses as much as digits as its factorization.

131210715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8747389.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 131210715 is about 11454.7245711104. The cubic root of 131210715 is about 508.1474696896.

Adding to 131210715 its reverse (517012131), we get a palindrome (648222846).

The spelling of 131210715 in words is "one hundred thirty-one million, two hundred ten thousand, seven hundred fifteen".