131207273 has 2 divisors, whose sum is σ = 131207274. Its totient is φ = 131207272.

The previous prime is 131207231. The next prime is 131207287. The reversal of 131207273 is 372702131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126067984 + 5139289 = 11228^2 + 2267^2 .

It is a cyclic number.

It is not a de Polignac number, because 131207273 - 2¹⁰ = 131206249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131207213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65603636 + 65603637.

It is an arithmetic number, because the mean of its divisors is an integer number (65603637).

Almost surely, 2^131207273 is an apocalyptic number.

It is an amenable number.

131207273 is a deficient number, since it is larger than the sum of its proper divisors (1).

131207273 is an equidigital number, since it uses as much as digits as its factorization.

131207273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 131207273 is about 11454.5743264427. The cubic root of 131207273 is about 508.1430263053.

The spelling of 131207273 in words is "one hundred thirty-one million, two hundred seven thousand, two hundred seventy-three".