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131007913 is a prime number
BaseRepresentation
bin1111100111100…
…00010110101001
3100010111220001221
413303300112221
5232014223123
620555542041
73150356161
oct763602651
9303456057
10131007913
1167a50203
1237a5a921
13211ac49a
14135835a1
15b77c25d
hex7cf05a9

131007913 has 2 divisors, whose sum is σ = 131007914. Its totient is φ = 131007912.

The previous prime is 131007893. The next prime is 131008013. The reversal of 131007913 is 319700131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87553449 + 43454464 = 9357^2 + 6592^2 .

It is a cyclic number.

It is not a de Polignac number, because 131007913 - 25 = 131007881 is a prime.

It is not a weakly prime, because it can be changed into another prime (131007113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65503956 + 65503957.

It is an arithmetic number, because the mean of its divisors is an integer number (65503957).

Almost surely, 2131007913 is an apocalyptic number.

It is an amenable number.

131007913 is a deficient number, since it is larger than the sum of its proper divisors (1).

131007913 is an equidigital number, since it uses as much as digits as its factorization.

131007913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 131007913 is about 11445.8688180496. The cubic root of 131007913 is about 507.8855336056.

The spelling of 131007913 in words is "one hundred thirty-one million, seven thousand, nine hundred thirteen".