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111000961 is a prime number
BaseRepresentation
bin1101001110110…
…11110110000001
321201212102200201
412213123312001
5211404012321
615003045201
72515330651
oct647336601
9251772621
10111000961
1157725735
1231210801
1319cc5b56
1410a56361
159b29291
hex69dbd81

111000961 has 2 divisors, whose sum is σ = 111000962. Its totient is φ = 111000960.

The previous prime is 111000959. The next prime is 111001001. The reversal of 111000961 is 169000111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76895361 + 34105600 = 8769^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 111000961 - 21 = 111000959 is a prime.

Together with 111000959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111000941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500480 + 55500481.

It is an arithmetic number, because the mean of its divisors is an integer number (55500481).

Almost surely, 2111000961 is an apocalyptic number.

It is an amenable number.

111000961 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000961 is an equidigital number, since it uses as much as digits as its factorization.

111000961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 111000961 is about 10535.6993597957. The cubic root of 111000961 is about 480.5909402931.

The spelling of 111000961 in words is "one hundred eleven million, nine hundred sixty-one", and thus it is an aban number.