102002455 has 16 divisors (see below), whose sum is σ = 126437760. Its totient is φ = 78952192.

The previous prime is 102002441. The next prime is 102002479. The reversal of 102002455 is 554200201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102002455 is a prime.

It is a super-3 number, since 3×102002455³ (a number of 25 digits) contains 333 as substring.

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, 18477 + ... + 23353.

It is an arithmetic number, because the mean of its divisors is an integer number (7902360).

Almost surely, 2^102002455 is an apocalyptic number.

102002455 is a deficient number, since it is larger than the sum of its proper divisors (24435305).

102002455 is an equidigital number, since it uses as much as digits as its factorization.

102002455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 102002455 is about 10099.6264782417. The cubic root of 102002455 is about 467.2366213568.

Adding to 102002455 its reverse (554200201), we get a palindrome (656202656).

The spelling of 102002455 in words is "one hundred two million, two thousand, four hundred fifty-five".