Search a number
-
+
91355141 is a prime number
BaseRepresentation
bin1010111000111…
…11100000000101
320100220022200202
411130133200011
5141341331031
613022020245
72156335343
oct534374005
9210808622
1091355141
1147627519
1226717685
1315c079c7
14c1c0993
1580482cb
hex571f805

91355141 has 2 divisors, whose sum is σ = 91355142. Its totient is φ = 91355140.

The previous prime is 91355137. The next prime is 91355153. The reversal of 91355141 is 14155319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79727041 + 11628100 = 8929^2 + 3410^2 .

It is a cyclic number.

It is not a de Polignac number, because 91355141 - 22 = 91355137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91355111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45677570 + 45677571.

It is an arithmetic number, because the mean of its divisors is an integer number (45677571).

Almost surely, 291355141 is an apocalyptic number.

It is an amenable number.

91355141 is a deficient number, since it is larger than the sum of its proper divisors (1).

91355141 is an equidigital number, since it uses as much as digits as its factorization.

91355141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 29.

The square root of 91355141 is about 9557.9883343725. The cubic root of 91355141 is about 450.3785144477.

The spelling of 91355141 in words is "ninety-one million, three hundred fifty-five thousand, one hundred forty-one".