131502013 has 2 divisors, whose sum is σ = 131502014. Its totient is φ = 131502012.

The previous prime is 131501989. The next prime is 131502029. The reversal of 131502013 is 310205131.

It is an a-pointer prime, because the next prime (131502029) can be obtained adding 131502013 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125484804 + 6017209 = 11202^2 + 2453^2 .

It is a cyclic number.

It is not a de Polignac number, because 131502013 - 2¹³ = 131493821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131502913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65751006 + 65751007.

It is an arithmetic number, because the mean of its divisors is an integer number (65751007).

Almost surely, 2^131502013 is an apocalyptic number.

It is an amenable number.

131502013 is a deficient number, since it is larger than the sum of its proper divisors (1).

131502013 is an equidigital number, since it uses as much as digits as its factorization.

131502013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 131502013 is about 11467.4327118148. The cubic root of 131502013 is about 508.5232340625.

Adding to 131502013 its reverse (310205131), we get a palindrome (441707144).

The spelling of 131502013 in words is "one hundred thirty-one million, five hundred two thousand, thirteen".