102040993 has 8 divisors (see below), whose sum is σ = 103306112. Its totient is φ = 100780416.

The previous prime is 102040979. The next prime is 102040999. The reversal of 102040993 is 399040201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102040993 - 2²¹ = 99943841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102040999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69796 + ... + 71242.

It is an arithmetic number, because the mean of its divisors is an integer number (12913264).

Almost surely, 2^102040993 is an apocalyptic number.

It is an amenable number.

102040993 is a deficient number, since it is larger than the sum of its proper divisors (1265119).

102040993 is an equidigital number, since it uses as much as digits as its factorization.

102040993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 102040993 is about 10101.5341904089. The cubic root of 102040993 is about 467.2954568613.

The spelling of 102040993 in words is "one hundred two million, forty thousand, nine hundred ninety-three".