4155241321 has 16 divisors (see below), whose sum is σ = 5268372480. Its totient is φ = 3182968080.

The previous prime is 4155241319. The next prime is 4155241327. The reversal of 4155241321 is 1231425514.

It is a cyclic number.

It is not a de Polignac number, because 4155241321 - 2¹ = 4155241319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4155241321.

It is not an unprimeable number, because it can be changed into a prime (4155241327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452781 + ... + 461866.

It is an arithmetic number, because the mean of its divisors is an integer number (329273280).

Almost surely, 2^4155241321 is an apocalyptic number.

It is an amenable number.

4155241321 is a deficient number, since it is larger than the sum of its proper divisors (1113131159).

4155241321 is a wasteful number, since it uses less digits than its factorization.

4155241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914724.

The product of its digits is 4800, while the sum is 28.

The square root of 4155241321 is about 64461.1613376613. The cubic root of 4155241321 is about 1607.6768212722.

Adding to 4155241321 its reverse (1231425514), we get a palindrome (5386666835).

The spelling of 4155241321 in words is "four billion, one hundred fifty-five million, two hundred forty-one thousand, three hundred twenty-one".