103191973 has 2 divisors, whose sum is σ = 103191974. Its totient is φ = 103191972.

The previous prime is 103191967. The next prime is 103192009. The reversal of 103191973 is 379191301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88698724 + 14493249 = 9418^2 + 3807^2 .

It is a cyclic number.

It is not a de Polignac number, because 103191973 - 2¹⁷ = 103060901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103191923) 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, 51595986 + 51595987.

It is an arithmetic number, because the mean of its divisors is an integer number (51595987).

Almost surely, 2^103191973 is an apocalyptic number.

It is an amenable number.

103191973 is a deficient number, since it is larger than the sum of its proper divisors (1).

103191973 is an equidigital number, since it uses as much as digits as its factorization.

103191973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 103191973 is about 10158.3449931571. The cubic root of 103191973 is about 469.0458581916.

The spelling of 103191973 in words is "one hundred three million, one hundred ninety-one thousand, nine hundred seventy-three".