131789667 has 4 divisors (see below), whose sum is σ = 175719560. Its totient is φ = 87859776.

The previous prime is 131789639. The next prime is 131789683. The reversal of 131789667 is 766987131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 131789667 - 2¹² = 131785571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131789167) 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, 21964942 + ... + 21964947.

It is an arithmetic number, because the mean of its divisors is an integer number (43929890).

Almost surely, 2^131789667 is an apocalyptic number.

131789667 is a deficient number, since it is larger than the sum of its proper divisors (43929893).

131789667 is an equidigital number, since it uses as much as digits as its factorization.

131789667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43929892.

The product of its digits is 381024, while the sum is 48.

The square root of 131789667 is about 11479.9680748685. The cubic root of 131789667 is about 508.8937536446.

The spelling of 131789667 in words is "one hundred thirty-one million, seven hundred eighty-nine thousand, six hundred sixty-seven".