Search a number
-
+
132916181 is a prime number
BaseRepresentation
bin1111110110000…
…10001111010101
3100021002211201112
413323002033111
5233011304211
621104504405
73202524506
oct773021725
9307084645
10132916181
1169033992
123861b105
13216c9c38
141391cbad
15ba0788b
hex7ec23d5

132916181 has 2 divisors, whose sum is σ = 132916182. Its totient is φ = 132916180.

The previous prime is 132916169. The next prime is 132916187. The reversal of 132916181 is 181619231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91107025 + 41809156 = 9545^2 + 6466^2 .

It is an emirp because it is prime and its reverse (181619231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132916181 - 222 = 128721877 is a prime.

It is a super-2 number, since 2×1329161812 = 35333422343249522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132916187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66458090 + 66458091.

It is an arithmetic number, because the mean of its divisors is an integer number (66458091).

Almost surely, 2132916181 is an apocalyptic number.

It is an amenable number.

132916181 is a deficient number, since it is larger than the sum of its proper divisors (1).

132916181 is an equidigital number, since it uses as much as digits as its factorization.

132916181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 32.

The square root of 132916181 is about 11528.9280074081. The cubic root of 132916181 is about 510.3396187227.

The spelling of 132916181 in words is "one hundred thirty-two million, nine hundred sixteen thousand, one hundred eighty-one".