131667373 has 2 divisors, whose sum is σ = 131667374. Its totient is φ = 131667372.

The previous prime is 131667353. The next prime is 131667407. The reversal of 131667373 is 373766131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108222409 + 23444964 = 10403^2 + 4842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131667373 is a prime.

It is a super-2 number, since 2×131667373² = 34672594225442258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131667343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65833686 + 65833687.

It is an arithmetic number, because the mean of its divisors is an integer number (65833687).

Almost surely, 2^131667373 is an apocalyptic number.

It is an amenable number.

131667373 is a deficient number, since it is larger than the sum of its proper divisors (1).

131667373 is an equidigital number, since it uses as much as digits as its factorization.

131667373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 37.

The square root of 131667373 is about 11474.6404300963. The cubic root of 131667373 is about 508.7362958959.

The spelling of 131667373 in words is "one hundred thirty-one million, six hundred sixty-seven thousand, three hundred seventy-three".