131616673 has 2 divisors, whose sum is σ = 131616674. Its totient is φ = 131616672.

The previous prime is 131616647. The next prime is 131616677. The reversal of 131616673 is 376616131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98069409 + 33547264 = 9903^2 + 5792^2 .

It is a cyclic number.

It is not a de Polignac number, because 131616673 - 2¹³ = 131608481 is a prime.

It is a super-2 number, since 2×131616673² = 34645897223177858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131616677) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65808336 + 65808337.

It is an arithmetic number, because the mean of its divisors is an integer number (65808337).

Almost surely, 2^131616673 is an apocalyptic number.

It is an amenable number.

131616673 is a deficient number, since it is larger than the sum of its proper divisors (1).

131616673 is an equidigital number, since it uses as much as digits as its factorization.

131616673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 131616673 is about 11472.4309978313. The cubic root of 131616673 is about 508.6709893056.

The spelling of 131616673 in words is "one hundred thirty-one million, six hundred sixteen thousand, six hundred seventy-three".