Search a number
-
+
155152559 is a prime number
BaseRepresentation
bin10010011111101…
…11000010101111
3101210221120022002
421033313002233
5304204340214
623221242515
73562526552
oct1117670257
9353846262
10155152559
117a641461
1243b6343b
13261b4263
141686a699
15d94b1de
hex93f70af

155152559 has 2 divisors, whose sum is σ = 155152560. Its totient is φ = 155152558.

The previous prime is 155152531. The next prime is 155152561. The reversal of 155152559 is 955251551.

It is a strong prime.

It is an emirp because it is prime and its reverse (955251551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-155152559 is a prime.

Together with 155152561, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p8717663 and since 155152559 and 8717663 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155152589) 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, 77576279 + 77576280.

It is an arithmetic number, because the mean of its divisors is an integer number (77576280).

Almost surely, 2155152559 is an apocalyptic number.

155152559 is a deficient number, since it is larger than the sum of its proper divisors (1).

155152559 is an equidigital number, since it uses as much as digits as its factorization.

155152559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56250, while the sum is 38.

The square root of 155152559 is about 12456.0250080032. The cubic root of 155152559 is about 537.3447140383.

The spelling of 155152559 in words is "one hundred fifty-five million, one hundred fifty-two thousand, five hundred fifty-nine".