103561879 has 2 divisors, whose sum is σ = 103561880. Its totient is φ = 103561878.

The previous prime is 103561849. The next prime is 103561897. The reversal of 103561879 is 978165301.

Together with next prime (103561897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (978165301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103561879 - 2¹¹ = 103559831 is a prime.

It is a super-3 number, since 3×103561879³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103561849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51780939 + 51780940.

It is an arithmetic number, because the mean of its divisors is an integer number (51780940).

Almost surely, 2^103561879 is an apocalyptic number.

103561879 is a deficient number, since it is larger than the sum of its proper divisors (1).

103561879 is an equidigital number, since it uses as much as digits as its factorization.

103561879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 103561879 is about 10176.5357072041. The cubic root of 103561879 is about 469.6056432504.

The spelling of 103561879 in words is "one hundred three million, five hundred sixty-one thousand, eight hundred seventy-nine".