Search a number
-
+
115148791 is a prime number
BaseRepresentation
bin1101101110100…
…00011111110111
322000200011110001
412313100133313
5213434230131
615232012131
72565514522
oct667203767
9260604401
10115148791
1159aa8a9a
1232691047
131ab18aa4
1411415bb9
15a198261
hex6dd07f7

115148791 has 2 divisors, whose sum is σ = 115148792. Its totient is φ = 115148790.

The previous prime is 115148779. The next prime is 115148801. The reversal of 115148791 is 197841511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115148791 - 211 = 115146743 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115148791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115148771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57574395 + 57574396.

It is an arithmetic number, because the mean of its divisors is an integer number (57574396).

Almost surely, 2115148791 is an apocalyptic number.

115148791 is a deficient number, since it is larger than the sum of its proper divisors (1).

115148791 is an equidigital number, since it uses as much as digits as its factorization.

115148791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 37.

The square root of 115148791 is about 10730.7404683927. The cubic root of 115148791 is about 486.5040509319.

The spelling of 115148791 in words is "one hundred fifteen million, one hundred forty-eight thousand, seven hundred ninety-one".