4021234541 has 2 divisors, whose sum is σ = 4021234542. Its totient is φ = 4021234540.

The previous prime is 4021234513. The next prime is 4021234543. The reversal of 4021234541 is 1454321204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2440854025 + 1580380516 = 49405^2 + 39754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021234541 is a prime.

Together with 4021234543, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4021234541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021234543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010617270 + 2010617271.

It is an arithmetic number, because the mean of its divisors is an integer number (2010617271).

Almost surely, 2^4021234541 is an apocalyptic number.

It is an amenable number.

4021234541 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021234541 is an equidigital number, since it uses as much as digits as its factorization.

4021234541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 4021234541 is about 63413.2047841772. The cubic root of 4021234541 is about 1590.2050736901.

Adding to 4021234541 its reverse (1454321204), we get a palindrome (5475555745).

The spelling of 4021234541 in words is "four billion, twenty-one million, two hundred thirty-four thousand, five hundred forty-one".