131002447 has 2 divisors, whose sum is σ = 131002448. Its totient is φ = 131002446.

The previous prime is 131002433. The next prime is 131002451. The reversal of 131002447 is 744200131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131002447 - 2¹¹ = 131000399 is a prime.

It is a super-2 number, since 2×131002447² = 34323282239975618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131002147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501223 + 65501224.

It is an arithmetic number, because the mean of its divisors is an integer number (65501224).

Almost surely, 2^131002447 is an apocalyptic number.

131002447 is a deficient number, since it is larger than the sum of its proper divisors (1).

131002447 is an equidigital number, since it uses as much as digits as its factorization.

131002447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 131002447 is about 11445.6300394517. The cubic root of 131002447 is about 507.8784700604.

Adding to 131002447 its reverse (744200131), we get a palindrome (875202578).

The spelling of 131002447 in words is "one hundred thirty-one million, two thousand, four hundred forty-seven".