420115161 has 8 divisors (see below), whose sum is σ = 560590624. Its totient is φ = 279858240.

The previous prime is 420115159. The next prime is 420115177. The reversal of 420115161 is 161511024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420115161 - 2¹ = 420115159 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420115121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50095 + ... + 57876.

It is an arithmetic number, because the mean of its divisors is an integer number (70073828).

Almost surely, 2^420115161 is an apocalyptic number.

It is an amenable number.

420115161 is a deficient number, since it is larger than the sum of its proper divisors (140475463).

420115161 is a wasteful number, since it uses less digits than its factorization.

420115161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109271.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 420115161 is about 20496.7109800573. The cubic root of 420115161 is about 748.9556789775.

Adding to 420115161 its reverse (161511024), we get a palindrome (581626185).

The spelling of 420115161 in words is "four hundred twenty million, one hundred fifteen thousand, one hundred sixty-one".