102005455 has 16 divisors (see below), whose sum is σ = 125357184. Its totient is φ = 79660800.

The previous prime is 102005447. The next prime is 102005461. The reversal of 102005455 is 554500201.

It is not a de Polignac number, because 102005455 - 2³ = 102005447 is a prime.

It is a super-2 number, since 2×102005455² = 20810225699514050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 35482 + ... + 38248.

It is an arithmetic number, because the mean of its divisors is an integer number (7834824).

Almost surely, 2^102005455 is an apocalyptic number.

102005455 is a deficient number, since it is larger than the sum of its proper divisors (23351729).

102005455 is a wasteful number, since it uses less digits than its factorization.

102005455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 102005455 is about 10099.7749974938. The cubic root of 102005455 is about 467.2412019528.

Adding to 102005455 its reverse (554500201), we get a palindrome (656505656).

The spelling of 102005455 in words is "one hundred two million, five thousand, four hundred fifty-five".