102040193 has 4 divisors (see below), whose sum is σ = 102072768. Its totient is φ = 102007620.

The previous prime is 102040187. The next prime is 102040201. The reversal of 102040193 is 391040201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 391040201 = 53 ⋅7378117.

It is a cyclic number.

It is not a de Polignac number, because 102040193 - 2¹⁰ = 102039169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102040093) 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, 11021 + ... + 18042.

It is an arithmetic number, because the mean of its divisors is an integer number (25518192).

Almost surely, 2^102040193 is an apocalyptic number.

It is an amenable number.

102040193 is a deficient number, since it is larger than the sum of its proper divisors (32575).

102040193 is an equidigital number, since it uses as much as digits as its factorization.

102040193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32574.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 102040193 is about 10101.4945923858. The cubic root of 102040193 is about 467.2942356614.

Adding to 102040193 its reverse (391040201), we get a palindrome (493080394).

The spelling of 102040193 in words is "one hundred two million, forty thousand, one hundred ninety-three".