434134142221 has 32 divisors (see below), whose sum is σ = 484997603328. Its totient is φ = 386044401600.

The previous prime is 434134142219. The next prime is 434134142261. The reversal of 434134142221 is 122241431434.

It is a happy number.

It is not a de Polignac number, because 434134142221 - 2¹ = 434134142219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434134142261) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 60705996 + ... + 60713146.

It is an arithmetic number, because the mean of its divisors is an integer number (15156175104).

Almost surely, 2^434134142221 is an apocalyptic number.

It is an amenable number.

434134142221 is a deficient number, since it is larger than the sum of its proper divisors (50863461107).

434134142221 is a wasteful number, since it uses less digits than its factorization.

434134142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761.

The product of its digits is 18432, while the sum is 31.

Adding to 434134142221 its reverse (122241431434), we get a palindrome (556375573655).

The spelling of 434134142221 in words is "four hundred thirty-four billion, one hundred thirty-four million, one hundred forty-two thousand, two hundred twenty-one".