10131709 has 4 divisors (see below), whose sum is σ = 11579104. Its totient is φ = 8684316.

The previous prime is 10131697. The next prime is 10131721. The reversal of 10131709 is 90713101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90713101 = 43 ⋅2109607.

It is an interprime number because it is at equal distance from previous prime (10131697) and next prime (10131721).

It is a cyclic number.

It is not a de Polignac number, because 10131709 - 2⁷ = 10131581 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 10131709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723687 + ... + 723700.

It is an arithmetic number, because the mean of its divisors is an integer number (2894776).

Almost surely, 2^10131709 is an apocalyptic number.

It is an amenable number.

10131709 is a deficient number, since it is larger than the sum of its proper divisors (1447395).

10131709 is an equidigital number, since it uses as much as digits as its factorization.

10131709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447394.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 10131709 is about 3183.0345584049. The cubic root of 10131709 is about 216.3852079707.

The spelling of 10131709 in words is "ten million, one hundred thirty-one thousand, seven hundred nine".