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12248881 is a prime number
BaseRepresentation
bin101110101110…
…011100110001
3212001022022021
4232232130301
511113431011
61114311441
7206054011
oct56563461
925038267
1012248881
116a06847
124128581
1326cb378
1418abc41
15111e471
hexbae731

12248881 has 2 divisors, whose sum is σ = 12248882. Its totient is φ = 12248880.

The previous prime is 12248879. The next prime is 12248897. The reversal of 12248881 is 18884221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 33856 = 3495^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 12248881 - 21 = 12248879 is a prime.

It is a super-2 number, since 2×122488812 = 300070171504322, which contains 22 as substring.

Together with 12248879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12246881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6124440 + 6124441.

It is an arithmetic number, because the mean of its divisors is an integer number (6124441).

Almost surely, 212248881 is an apocalyptic number.

It is an amenable number.

12248881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12248881 is an equidigital number, since it uses as much as digits as its factorization.

12248881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8192, while the sum is 34.

The square root of 12248881 is about 3499.8401392064. The cubic root of 12248881 is about 230.5147952352.

The spelling of 12248881 in words is "twelve million, two hundred forty-eight thousand, eight hundred eighty-one".