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130137409 is a prime number
BaseRepresentation
bin1111100000110…
…11110101000001
3100001212122222001
413300123311001
5231303344114
620525144001
73140102233
oct760336501
9301778861
10130137409
1167506186
12376bb001
1320c661ac
14133d8253
15b659374
hex7c1bd41

130137409 has 2 divisors, whose sum is σ = 130137410. Its totient is φ = 130137408.

The previous prime is 130137401. The next prime is 130137437. The reversal of 130137409 is 904731031.

It is an a-pointer prime, because the next prime (130137437) can be obtained adding 130137409 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118200384 + 11937025 = 10872^2 + 3455^2 .

It is an emirp because it is prime and its reverse (904731031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130137409 - 23 = 130137401 is a prime.

It is not a weakly prime, because it can be changed into another prime (130137401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65068704 + 65068705.

It is an arithmetic number, because the mean of its divisors is an integer number (65068705).

Almost surely, 2130137409 is an apocalyptic number.

It is an amenable number.

130137409 is a deficient number, since it is larger than the sum of its proper divisors (1).

130137409 is an equidigital number, since it uses as much as digits as its factorization.

130137409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 130137409 is about 11407.7784427995. The cubic root of 130137409 is about 506.7581226778.

The spelling of 130137409 in words is "one hundred thirty million, one hundred thirty-seven thousand, four hundred nine".