4234121505 has 40 divisors (see below), whose sum is σ = 7733302632. Its totient is φ = 2215579392.

The previous prime is 4234121491. The next prime is 4234121509. The reversal of 4234121505 is 5051214324.

4234121505 is a `hidden beast` number, since 4 + 2 + 34 + 121 + 505 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2196140769 + 2037980736 = 46863^2 + 45144^2 .

It is not a de Polignac number, because 4234121505 - 2⁹ = 4234120993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4234121509) 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 39 ways as a sum of consecutive naturals, for example, 77164 + ... + 120093.

Almost surely, 2^4234121505 is an apocalyptic number.

4234121505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4234121505 is a deficient number, since it is larger than the sum of its proper divisors (3499181127).

4234121505 is a wasteful number, since it uses less digits than its factorization.

4234121505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197327 (or 197318 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 4234121505 is about 65070.1275932359. The cubic root of 4234121505 is about 1617.7861220022.

Adding to 4234121505 its reverse (5051214324), we get a palindrome (9285335829).

The spelling of 4234121505 in words is "four billion, two hundred thirty-four million, one hundred twenty-one thousand, five hundred five".