103281881 has 2 divisors, whose sum is σ = 103281882. Its totient is φ = 103281880.

The previous prime is 103281877. The next prime is 103281923. The reversal of 103281881 is 188182301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93296281 + 9985600 = 9659^2 + 3160^2 .

It is an emirp because it is prime and its reverse (188182301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103281881 - 2² = 103281877 is a prime.

It is a super-2 number, since 2×103281881² = 21334293885796322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103281811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51640940 + 51640941.

It is an arithmetic number, because the mean of its divisors is an integer number (51640941).

Almost surely, 2^103281881 is an apocalyptic number.

It is an amenable number.

103281881 is a deficient number, since it is larger than the sum of its proper divisors (1).

103281881 is an equidigital number, since it uses as much as digits as its factorization.

103281881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 103281881 is about 10162.7693568240. The cubic root of 103281881 is about 469.1820404038.

The spelling of 103281881 in words is "one hundred three million, two hundred eighty-one thousand, eight hundred eighty-one".