131623267 has 2 divisors, whose sum is σ = 131623268. Its totient is φ = 131623266.

The previous prime is 131623253. The next prime is 131623291. The reversal of 131623267 is 762326131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131623267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131623067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65811633 + 65811634.

It is an arithmetic number, because the mean of its divisors is an integer number (65811634).

Almost surely, 2^131623267 is an apocalyptic number.

131623267 is a deficient number, since it is larger than the sum of its proper divisors (1).

131623267 is an equidigital number, since it uses as much as digits as its factorization.

131623267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 131623267 is about 11472.7183788325. The cubic root of 131623267 is about 508.6794839753.

Adding to 131623267 its reverse (762326131), we get a palindrome (893949398).

The spelling of 131623267 in words is "one hundred thirty-one million, six hundred twenty-three thousand, two hundred sixty-seven".