102004345 has 4 divisors (see below), whose sum is σ = 122405220. Its totient is φ = 81603472.

The previous prime is 102004319. The next prime is 102004349. The reversal of 102004345 is 543400201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543400201 = 373 ⋅1456837.

It can be written as a sum of positive squares in 2 ways, for example, as 12645136 + 89359209 = 3556^2 + 9453^2 .

It is a cyclic number.

It is not a de Polignac number, because 102004345 - 2¹⁷ = 101873273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102004349) 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, 10200430 + ... + 10200439.

It is an arithmetic number, because the mean of its divisors is an integer number (30601305).

Almost surely, 2^102004345 is an apocalyptic number.

It is an amenable number.

102004345 is a deficient number, since it is larger than the sum of its proper divisors (20400875).

102004345 is an equidigital number, since it uses as much as digits as its factorization.

102004345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400874.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 102004345 is about 10099.7200456250. The cubic root of 102004345 is about 467.2395071427.

Adding to 102004345 its reverse (543400201), we get a palindrome (645404546).

The spelling of 102004345 in words is "one hundred two million, four thousand, three hundred forty-five".