131303273 has 2 divisors, whose sum is σ = 131303274. Its totient is φ = 131303272.

The previous prime is 131303239. The next prime is 131303309. The reversal of 131303273 is 372303131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85969984 + 45333289 = 9272^2 + 6733^2 .

It is a cyclic number.

It is not a de Polignac number, because 131303273 - 2²⁶ = 64194409 is a prime.

It is not a weakly prime, because it can be changed into another prime (131303203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651636 + 65651637.

It is an arithmetic number, because the mean of its divisors is an integer number (65651637).

Almost surely, 2^131303273 is an apocalyptic number.

It is an amenable number.

131303273 is a deficient number, since it is larger than the sum of its proper divisors (1).

131303273 is an equidigital number, since it uses as much as digits as its factorization.

131303273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 131303273 is about 11458.7640258450. The cubic root of 131303273 is about 508.2669265458.

The spelling of 131303273 in words is "one hundred thirty-one million, three hundred three thousand, two hundred seventy-three".