131065791 has 8 divisors (see below), whose sum is σ = 175000320. Its totient is φ = 87254232.

The previous prime is 131065789. The next prime is 131065793. The reversal of 131065791 is 197560131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131065789) and next prime (131065793).

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

It is not a de Polignac number, because 131065791 - 2¹ = 131065789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131065793) 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, 28225 + ... + 32538.

It is an arithmetic number, because the mean of its divisors is an integer number (21875040).

Almost surely, 2^131065791 is an apocalyptic number.

131065791 is a deficient number, since it is larger than the sum of its proper divisors (43934529).

131065791 is an equidigital number, since it uses as much as digits as its factorization.

131065791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61485.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 131065791 is about 11448.3968746720. The cubic root of 131065791 is about 507.9603155289.

The spelling of 131065791 in words is "one hundred thirty-one million, sixty-five thousand, seven hundred ninety-one".