Search a number
-
+
12856153 is a prime number
BaseRepresentation
bin110001000010…
…101101011001
3220012011022211
4301002231121
511242344103
61135315121
7214163332
oct61025531
926164284
1012856153
117291022
12437baa1
1328818bb
1419c9289
1511de36d
hexc42b59

12856153 has 2 divisors, whose sum is σ = 12856154. Its totient is φ = 12856152.

The previous prime is 12856133. The next prime is 12856163. The reversal of 12856153 is 35165821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7038409 + 5817744 = 2653^2 + 2412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12856153 is a prime.

It is not a weakly prime, because it can be changed into another prime (12856133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428076 + 6428077.

It is an arithmetic number, because the mean of its divisors is an integer number (6428077).

Almost surely, 212856153 is an apocalyptic number.

It is an amenable number.

12856153 is a deficient number, since it is larger than the sum of its proper divisors (1).

12856153 is an equidigital number, since it uses as much as digits as its factorization.

12856153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 31.

The square root of 12856153 is about 3585.5477963625. The cubic root of 12856153 is about 234.2629874948.

The spelling of 12856153 in words is "twelve million, eight hundred fifty-six thousand, one hundred fifty-three".