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115970557 is a prime number
BaseRepresentation
bin1101110100110…
…01000111111101
322002012220200211
412322121013331
5214142024212
615301352421
72605506403
oct672310775
9262186624
10115970557
115a50a43a
1232a08711
131b045b41
141158b473
15a2ab9a7
hex6e991fd

115970557 has 2 divisors, whose sum is σ = 115970558. Its totient is φ = 115970556.

The previous prime is 115970539. The next prime is 115970599. The reversal of 115970557 is 755079511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63059481 + 52911076 = 7941^2 + 7274^2 .

It is a cyclic number.

It is not a de Polignac number, because 115970557 - 27 = 115970429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115970537) 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, 57985278 + 57985279.

It is an arithmetic number, because the mean of its divisors is an integer number (57985279).

Almost surely, 2115970557 is an apocalyptic number.

It is an amenable number.

115970557 is a deficient number, since it is larger than the sum of its proper divisors (1).

115970557 is an equidigital number, since it uses as much as digits as its factorization.

115970557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55125, while the sum is 40.

The square root of 115970557 is about 10768.9626705640. The cubic root of 115970557 is about 487.6586301214.

The spelling of 115970557 in words is "one hundred fifteen million, nine hundred seventy thousand, five hundred fifty-seven".