103519993 has 2 divisors, whose sum is σ = 103519994. Its totient is φ = 103519992.

The previous prime is 103519981. The next prime is 103520003. The reversal of 103519993 is 399915301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103388224 + 131769 = 10168^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 103519993 - 2¹³ = 103511801 is a prime.

It is not a weakly prime, because it can be changed into another prime (103519973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51759996 + 51759997.

It is an arithmetic number, because the mean of its divisors is an integer number (51759997).

Almost surely, 2^103519993 is an apocalyptic number.

It is an amenable number.

103519993 is a deficient number, since it is larger than the sum of its proper divisors (1).

103519993 is an equidigital number, since it uses as much as digits as its factorization.

103519993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32805, while the sum is 40.

The square root of 103519993 is about 10174.4775295835. The cubic root of 103519993 is about 469.5423234438.

The spelling of 103519993 in words is "one hundred three million, five hundred nineteen thousand, nine hundred ninety-three".