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115164557 is a prime number
BaseRepresentation
bin1101101110101…
…00010110001101
322000200222001222
412313110112031
5213440231212
615232213125
72565611504
oct667242615
9260628058
10115164557
115a009922
123269a1a5
131ab23011
141141b83b
15a19cc72
hex6dd458d

115164557 has 2 divisors, whose sum is σ = 115164558. Its totient is φ = 115164556.

The previous prime is 115164551. The next prime is 115164563. The reversal of 115164557 is 755461511.

It is a balanced prime because it is at equal distance from previous prime (115164551) and next prime (115164563).

It can be written as a sum of positive squares in only one way, i.e., 114618436 + 546121 = 10706^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 115164557 - 216 = 115099021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115164551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57582278 + 57582279.

It is an arithmetic number, because the mean of its divisors is an integer number (57582279).

Almost surely, 2115164557 is an apocalyptic number.

It is an amenable number.

115164557 is a deficient number, since it is larger than the sum of its proper divisors (1).

115164557 is an equidigital number, since it uses as much as digits as its factorization.

115164557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 35.

The square root of 115164557 is about 10731.4750617052. The cubic root of 115164557 is about 486.5262537206.

The spelling of 115164557 in words is "one hundred fifteen million, one hundred sixty-four thousand, five hundred fifty-seven".