Search a number
-
+
115744591 is a prime number
BaseRepresentation
bin1101110011000…
…01111101001111
322001210102201201
412321201331033
5214112311331
615252450331
72603545534
oct671417517
9261712651
10115744591
115a375696
12329199a7
131ac97031
141152cd8b
15a264a61
hex6e61f4f

115744591 has 2 divisors, whose sum is σ = 115744592. Its totient is φ = 115744590.

The previous prime is 115744477. The next prime is 115744631. The reversal of 115744591 is 195447511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115744591 - 27 = 115744463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115744591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115744091) 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, 57872295 + 57872296.

It is an arithmetic number, because the mean of its divisors is an integer number (57872296).

Almost surely, 2115744591 is an apocalyptic number.

115744591 is a deficient number, since it is larger than the sum of its proper divisors (1).

115744591 is an equidigital number, since it uses as much as digits as its factorization.

115744591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 37.

The square root of 115744591 is about 10758.4660151901. The cubic root of 115744591 is about 487.3416935909.

The spelling of 115744591 in words is "one hundred fifteen million, seven hundred forty-four thousand, five hundred ninety-one".