420155140134 has 16 divisors (see below), whose sum is σ = 844664221872. Its totient is φ = 139326056448.

The previous prime is 420155140081. The next prime is 420155140157. The reversal of 420155140134 is 431041551024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181412979 + ... + 181415294.

It is an arithmetic number, because the mean of its divisors is an integer number (52791513867).

Almost surely, 2^420155140134 is an apocalyptic number.

420155140134 is an abundant number, since it is smaller than the sum of its proper divisors (424509081738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420155140134 is a wasteful number, since it uses less digits than its factorization.

420155140134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362828471.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 420155140134 its reverse (431041551024), we get a palindrome (851196691158).

The spelling of 420155140134 in words is "four hundred twenty billion, one hundred fifty-five million, one hundred forty thousand, one hundred thirty-four".