103991227 has 4 divisors (see below), whose sum is σ = 110108376. Its totient is φ = 97874080.

The previous prime is 103991221. The next prime is 103991233. The reversal of 103991227 is 722199301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722199301 = 331 ⋅2181871.

It is an interprime number because it is at equal distance from previous prime (103991221) and next prime (103991233).

It is a cyclic number.

It is not a de Polignac number, because 103991227 - 2³ = 103991219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103991192 and 103991201.

It is not an unprimeable number, because it can be changed into a prime (103991221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3058549 + ... + 3058582.

It is an arithmetic number, because the mean of its divisors is an integer number (27527094).

Almost surely, 2^103991227 is an apocalyptic number.

103991227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

103991227 is a deficient number, since it is larger than the sum of its proper divisors (6117149).

103991227 is an equidigital number, since it uses as much as digits as its factorization.

103991227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117148.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 103991227 is about 10197.6088864008. The cubic root of 103991227 is about 470.2537139292.

The spelling of 103991227 in words is "one hundred three million, nine hundred ninety-one thousand, two hundred twenty-seven".