420002135 has 16 divisors (see below), whose sum is σ = 576500736. Its totient is φ = 287752608.

The previous prime is 420002123. The next prime is 420002171. The reversal of 420002135 is 531200024.

It is a cyclic number.

It is not a de Polignac number, because 420002135 - 2²² = 415807831 is a prime.

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, 41924 + ... + 50966.

It is an arithmetic number, because the mean of its divisors is an integer number (36031296).

Almost surely, 2^420002135 is an apocalyptic number.

420002135 is a deficient number, since it is larger than the sum of its proper divisors (156498601).

420002135 is a wasteful number, since it uses less digits than its factorization.

420002135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10382.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 420002135 is about 20493.9536205194. The cubic root of 420002135 is about 748.8885076675. Note that the first 3 decimals are identical.

Adding to 420002135 its reverse (531200024), we get a palindrome (951202159).

The spelling of 420002135 in words is "four hundred twenty million, two thousand, one hundred thirty-five".