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130952281 is a prime number
BaseRepresentation
bin1111100111000…
…10110001011001
3100010102001202111
413303202301121
5232010433111
620554432321
73150035035
oct763426131
9303361674
10130952281
1167a12429
1237a326a1
1321190075
141356b1c5
15b76aa21
hex7ce2c59

130952281 has 2 divisors, whose sum is σ = 130952282. Its totient is φ = 130952280.

The previous prime is 130952279. The next prime is 130952321. The reversal of 130952281 is 182259031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 10830681 = 10960^2 + 3291^2 .

It is an emirp because it is prime and its reverse (182259031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130952281 - 21 = 130952279 is a prime.

It is a super-2 number, since 2×1309522812 = 34296999798205922, which contains 22 as substring.

Together with 130952279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (130952201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65476140 + 65476141.

It is an arithmetic number, because the mean of its divisors is an integer number (65476141).

Almost surely, 2130952281 is an apocalyptic number.

It is an amenable number.

130952281 is a deficient number, since it is larger than the sum of its proper divisors (1).

130952281 is an equidigital number, since it uses as much as digits as its factorization.

130952281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 130952281 is about 11443.4383381919. The cubic root of 130952281 is about 507.8136328893.

It can be divided in two parts, 13095 and 2281, that added together give a square (15376 = 1242).

The spelling of 130952281 in words is "one hundred thirty million, nine hundred fifty-two thousand, two hundred eighty-one".