131275667 has 4 divisors (see below), whose sum is σ = 134823696. Its totient is φ = 127727640.

The previous prime is 131275619. The next prime is 131275673. The reversal of 131275667 is 766572131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766572131 = 13 ⋅58967087.

It is a cyclic number.

It is not a de Polignac number, because 131275667 - 2¹² = 131271571 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 131275667.

It is not an unprimeable number, because it can be changed into a prime (131275867) 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, 1773959 + ... + 1774032.

It is an arithmetic number, because the mean of its divisors is an integer number (33705924).

Almost surely, 2^131275667 is an apocalyptic number.

131275667 is a deficient number, since it is larger than the sum of its proper divisors (3548029).

131275667 is an equidigital number, since it uses as much as digits as its factorization.

131275667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548028.

The product of its digits is 52920, while the sum is 38.

The square root of 131275667 is about 11457.5593823467. The cubic root of 131275667 is about 508.2313036708.

The spelling of 131275667 in words is "one hundred thirty-one million, two hundred seventy-five thousand, six hundred sixty-seven".