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130718957 is a prime number
BaseRepresentation
bin1111100101010…
…01110011101101
3100002222012200212
413302221303231
5231431001312
620545432205
73145043555
oct762516355
9302865625
10130718957
11678730a6
123793b665
132110aac5
141350a165
15b721822
hex7ca9ced

130718957 has 2 divisors, whose sum is σ = 130718958. Its totient is φ = 130718956.

The previous prime is 130718953. The next prime is 130718963. The reversal of 130718957 is 759817031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80748196 + 49970761 = 8986^2 + 7069^2 .

It is an emirp because it is prime and its reverse (759817031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130718957 - 22 = 130718953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130718953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65359478 + 65359479.

It is an arithmetic number, because the mean of its divisors is an integer number (65359479).

Almost surely, 2130718957 is an apocalyptic number.

It is an amenable number.

130718957 is a deficient number, since it is larger than the sum of its proper divisors (1).

130718957 is an equidigital number, since it uses as much as digits as its factorization.

130718957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 130718957 is about 11433.2391298354. The cubic root of 130718957 is about 507.5118549003.

The spelling of 130718957 in words is "one hundred thirty million, seven hundred eighteen thousand, nine hundred fifty-seven".