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2131710797 is a prime number
BaseRepresentation
bin111111100001111…
…0101001101001101
312111120012010110202
41333003311031031
513331204221142
6551305543245
7103553146166
oct17703651515
95446163422
102131710797
119a4327967
124b5aa4b25
1327c841748
1416318276d
15c722d032
hex7f0f534d

2131710797 has 2 divisors, whose sum is σ = 2131710798. Its totient is φ = 2131710796.

The previous prime is 2131710781. The next prime is 2131710851. The reversal of 2131710797 is 7970171312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1454201956 + 677508841 = 38134^2 + 26029^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131710797 - 24 = 2131710781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2131710797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131710727) 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, 1065855398 + 1065855399.

It is an arithmetic number, because the mean of its divisors is an integer number (1065855399).

Almost surely, 22131710797 is an apocalyptic number.

It is an amenable number.

2131710797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131710797 is an equidigital number, since it uses as much as digits as its factorization.

2131710797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 38.

The square root of 2131710797 is about 46170.4537231334. The cubic root of 2131710797 is about 1286.9927338647.

The spelling of 2131710797 in words is "two billion, one hundred thirty-one million, seven hundred ten thousand, seven hundred ninety-seven".