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131200007 is a prime number
BaseRepresentation
bin1111101000111…
…11010000000111
3100010212122120112
413310133100013
5232041400012
621004023235
73152116211
oct764372007
9303778515
10131200007
1168071564
1237b31b1b
1321248a53
14135d35b1
15b7b9122
hex7d1f407

131200007 has 2 divisors, whose sum is σ = 131200008. Its totient is φ = 131200006.

The previous prime is 131199989. The next prime is 131200057. The reversal of 131200007 is 700002131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131200007 - 226 = 64091143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131199964 and 131200000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131200057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600003 + 65600004.

It is an arithmetic number, because the mean of its divisors is an integer number (65600004).

Almost surely, 2131200007 is an apocalyptic number.

131200007 is a deficient number, since it is larger than the sum of its proper divisors (1).

131200007 is an equidigital number, since it uses as much as digits as its factorization.

131200007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 131200007 is about 11454.2571561843. The cubic root of 131200007 is about 508.1336461459.

Adding to 131200007 its reverse (700002131), we get a palindrome (831202138).

The spelling of 131200007 in words is "one hundred thirty-one million, two hundred thousand, seven".