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128754097 is a prime number
BaseRepresentation
bin1111010110010…
…10000110110001
322222021101102021
413223022012301
5230430112342
620435351441
73122251243
oct753120661
9288241367
10128754097
116675094a
1237152581
13208a0674
1413158093
15b484567
hex7aca1b1

128754097 has 2 divisors, whose sum is σ = 128754098. Its totient is φ = 128754096.

The previous prime is 128754061. The next prime is 128754133. The reversal of 128754097 is 790457821.

It is a balanced prime because it is at equal distance from previous prime (128754061) and next prime (128754133).

It can be written as a sum of positive squares in only one way, i.e., 72743841 + 56010256 = 8529^2 + 7484^2 .

It is an emirp because it is prime and its reverse (790457821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128754097 - 223 = 120365489 is a prime.

It is not a weakly prime, because it can be changed into another prime (128754007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64377048 + 64377049.

It is an arithmetic number, because the mean of its divisors is an integer number (64377049).

Almost surely, 2128754097 is an apocalyptic number.

It is an amenable number.

128754097 is a deficient number, since it is larger than the sum of its proper divisors (1).

128754097 is an equidigital number, since it uses as much as digits as its factorization.

128754097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 128754097 is about 11346.9862518644. The cubic root of 128754097 is about 504.9561730419.

The spelling of 128754097 in words is "one hundred twenty-eight million, seven hundred fifty-four thousand, ninety-seven".