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131300881 is a prime number
BaseRepresentation
bin1111101001101…
…11111000010001
3100011001202221121
413310313320101
5232103112011
621010122241
73153016255
oct764677021
9304052847
10131300881
1168130328
1237b80381
132128293a
141361c265
15b7d8e71
hex7d37e11

131300881 has 2 divisors, whose sum is σ = 131300882. Its totient is φ = 131300880.

The previous prime is 131300863. The next prime is 131300927. The reversal of 131300881 is 188003131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88529281 + 42771600 = 9409^2 + 6540^2 .

It is a cyclic number.

It is not a de Polignac number, because 131300881 - 225 = 97746449 is a prime.

It is a super-2 number, since 2×1313008812 = 34479842702752322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131300681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65650440 + 65650441.

It is an arithmetic number, because the mean of its divisors is an integer number (65650441).

Almost surely, 2131300881 is an apocalyptic number.

It is an amenable number.

131300881 is a deficient number, since it is larger than the sum of its proper divisors (1).

131300881 is an equidigital number, since it uses as much as digits as its factorization.

131300881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 131300881 is about 11458.6596511110. The cubic root of 131300881 is about 508.2638400985.

The spelling of 131300881 in words is "one hundred thirty-one million, three hundred thousand, eight hundred eighty-one".