102104555 has 16 divisors (see below), whose sum is σ = 143446464. Its totient is φ = 68305920.

The previous prime is 102104549. The next prime is 102104573. The reversal of 102104555 is 555401201.

It is a happy number.

It is not a de Polignac number, because 102104555 - 2¹⁰ = 102103531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102104555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34142 + ... + 37011.

It is an arithmetic number, because the mean of its divisors is an integer number (8965404).

Almost surely, 2^102104555 is an apocalyptic number.

102104555 is a deficient number, since it is larger than the sum of its proper divisors (41341909).

102104555 is an equidigital number, since it uses as much as digits as its factorization.

102104555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71206.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 102104555 is about 10104.6798563834. The cubic root of 102104555 is about 467.3924638511.

Adding to 102104555 its reverse (555401201), we get a palindrome (657505756).

The spelling of 102104555 in words is "one hundred two million, one hundred four thousand, five hundred fifty-five".