131349787 has 8 divisors (see below), whose sum is σ = 137795040. Its totient is φ = 125032320.

The previous prime is 131349781. The next prime is 131349791. The reversal of 131349787 is 787943131.

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

It is a cyclic number.

It is not a de Polignac number, because 131349787 - 2¹¹ = 131347739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131349781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29838 + ... + 33955.

It is an arithmetic number, because the mean of its divisors is an integer number (17224380).

Almost surely, 2^131349787 is an apocalyptic number.

131349787 is a deficient number, since it is larger than the sum of its proper divisors (6445253).

131349787 is an equidigital number, since it uses as much as digits as its factorization.

131349787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63893.

The product of its digits is 127008, while the sum is 43.

The square root of 131349787 is about 11460.7934716581. The cubic root of 131349787 is about 508.3269370750.

The spelling of 131349787 in words is "one hundred thirty-one million, three hundred forty-nine thousand, seven hundred eighty-seven".