4285139121 has 12 divisors (see below), whose sum is σ = 6234177040. Its totient is φ = 2836206360.

The previous prime is 4285139087. The next prime is 4285139129. The reversal of 4285139121 is 1219315824.

It is not a de Polignac number, because 4285139121 - 2¹⁹ = 4284614833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4285139129) 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 11 ways as a sum of consecutive naturals, for example, 1711435 + ... + 1713936.

Almost surely, 2^4285139121 is an apocalyptic number.

It is an amenable number.

4285139121 is a deficient number, since it is larger than the sum of its proper divisors (1949037919).

4285139121 is a wasteful number, since it uses less digits than its factorization.

4285139121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425516 (or 3425513 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 4285139121 is about 65460.9740303335. The cubic root of 4285139121 is about 1624.2578538985.

The spelling of 4285139121 in words is "four billion, two hundred eighty-five million, one hundred thirty-nine thousand, one hundred twenty-one".