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1114012181 is a prime number
BaseRepresentation
bin100001001100110…
…0111101000010101
32212122012200102102
41002121213220111
54240141342211
6302313051445
736414642632
oct10231475025
92778180372
101114012181
11521915927
122710b6b85
13149a48809
14a7d49189
1567c02a3b
hex42667a15

1114012181 has 2 divisors, whose sum is σ = 1114012182. Its totient is φ = 1114012180.

The previous prime is 1114012157. The next prime is 1114012231. The reversal of 1114012181 is 1812104111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 990046225 + 123965956 = 31465^2 + 11134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1114012181 is a prime.

It is a super-2 number, since 2×11140121812 = 2482046278832753522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1114012381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557006090 + 557006091.

It is an arithmetic number, because the mean of its divisors is an integer number (557006091).

Almost surely, 21114012181 is an apocalyptic number.

It is an amenable number.

1114012181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1114012181 is an equidigital number, since it uses as much as digits as its factorization.

1114012181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 1114012181 is about 33376.8210139911. The cubic root of 1114012181 is about 1036.6448151201.

Adding to 1114012181 its reverse (1812104111), we get a palindrome (2926116292).

The spelling of 1114012181 in words is "one billion, one hundred fourteen million, twelve thousand, one hundred eighty-one".