4145013421 has 2 divisors, whose sum is σ = 4145013422. Its totient is φ = 4145013420.

The previous prime is 4145013377. The next prime is 4145013451. The reversal of 4145013421 is 1243105414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2765708100 + 1379305321 = 52590^2 + 37139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145013421 - 2¹⁷ = 4144882349 is a prime.

It is a super-2 number, since 2×4145013421² = 34362272520540246482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4145013451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072506710 + 2072506711.

It is an arithmetic number, because the mean of its divisors is an integer number (2072506711).

Almost surely, 2^4145013421 is an apocalyptic number.

It is an amenable number.

4145013421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145013421 is an equidigital number, since it uses as much as digits as its factorization.

4145013421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 4145013421 is about 64381.7786411652. The cubic root of 4145013421 is about 1606.3566678979.

Adding to 4145013421 its reverse (1243105414), we get a palindrome (5388118835).

The spelling of 4145013421 in words is "four billion, one hundred forty-five million, thirteen thousand, four hundred twenty-one".