103172819 has 2 divisors, whose sum is σ = 103172820. Its totient is φ = 103172818.

The previous prime is 103172801. The next prime is 103172827. The reversal of 103172819 is 918271301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103172819 - 2¹⁶ = 103107283 is a prime.

It is a super-2 number, since 2×103172819² = 21289261160813522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103172879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51586409 + 51586410.

It is an arithmetic number, because the mean of its divisors is an integer number (51586410).

Almost surely, 2^103172819 is an apocalyptic number.

103172819 is a deficient number, since it is larger than the sum of its proper divisors (1).

103172819 is an equidigital number, since it uses as much as digits as its factorization.

103172819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 103172819 is about 10157.4021777224. The cubic root of 103172819 is about 469.0168357136.

The spelling of 103172819 in words is "one hundred three million, one hundred seventy-two thousand, eight hundred nineteen".