Search a number
-
+
128164629653 is a prime number
BaseRepresentation
bin111011101011100110…
…1010000110010010101
3110020211000100202211022
41313113031100302111
54044440121122103
6134513352450525
712155016243254
oct1672715206225
9406730322738
10128164629653
114a399657235
1220a0a0a9a45
13c11687c288
1462bb82679b
153501b70138
hex1dd7350c95

128164629653 has 2 divisors, whose sum is σ = 128164629654. Its totient is φ = 128164629652.

The previous prime is 128164629643. The next prime is 128164629689. The reversal of 128164629653 is 356926461821.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81671351524 + 46493278129 = 285782^2 + 215623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-128164629653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128164629595 and 128164629604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128164629643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64082314826 + 64082314827.

It is an arithmetic number, because the mean of its divisors is an integer number (64082314827).

Almost surely, 2128164629653 is an apocalyptic number.

It is an amenable number.

128164629653 is a deficient number, since it is larger than the sum of its proper divisors (1).

128164629653 is an equidigital number, since it uses as much as digits as its factorization.

128164629653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 53.

The spelling of 128164629653 in words is "one hundred twenty-eight billion, one hundred sixty-four million, six hundred twenty-nine thousand, six hundred fifty-three".