420102655 has 8 divisors (see below), whose sum is σ = 576140832. Its totient is φ = 288070368.

The previous prime is 420102649. The next prime is 420102667. The reversal of 420102655 is 556201024.

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 420102655 - 2¹¹ = 420100607 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 6001432 + ... + 6001501.

It is an arithmetic number, because the mean of its divisors is an integer number (72017604).

Almost surely, 2^420102655 is an apocalyptic number.

420102655 is a deficient number, since it is larger than the sum of its proper divisors (156038177).

420102655 is a wasteful number, since it uses less digits than its factorization.

420102655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12002945.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 420102655 is about 20496.4059044507. The cubic root of 420102655 is about 748.9482472592.

Adding to 420102655 its reverse (556201024), we get a palindrome (976303679).

The spelling of 420102655 in words is "four hundred twenty million, one hundred two thousand, six hundred fifty-five".