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131102801 is a prime number
BaseRepresentation
bin1111101000001…
…11100001010001
3100010200201020022
413310013201101
5232030242201
621001553225
73151232624
oct764074121
9303621208
10131102801
1168005525
1237aa5815
132121372b
14135a9dbb
15b79a41b
hex7d07851

131102801 has 2 divisors, whose sum is σ = 131102802. Its totient is φ = 131102800.

The previous prime is 131102753. The next prime is 131102833. The reversal of 131102801 is 108201131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67486225 + 63616576 = 8215^2 + 7976^2 .

It is a cyclic number.

It is not a de Polignac number, because 131102801 - 222 = 126908497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131102801.

It is not a weakly prime, because it can be changed into another prime (131102891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65551400 + 65551401.

It is an arithmetic number, because the mean of its divisors is an integer number (65551401).

Almost surely, 2131102801 is an apocalyptic number.

It is an amenable number.

131102801 is a deficient number, since it is larger than the sum of its proper divisors (1).

131102801 is an equidigital number, since it uses as much as digits as its factorization.

131102801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 131102801 is about 11450.0131440973. The cubic root of 131102801 is about 508.0081231780.

Adding to 131102801 its reverse (108201131), we get a palindrome (239303932).

The spelling of 131102801 in words is "one hundred thirty-one million, one hundred two thousand, eight hundred one".