4101564421 has 4 divisors (see below), whose sum is σ = 4168803244. Its totient is φ = 4034325600.

The previous prime is 4101564403. The next prime is 4101564427. The reversal of 4101564421 is 1244651014.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1244651014 = 2 ⋅622325507.

It can be written as a sum of positive squares in 2 ways, for example, as 2043944100 + 2057620321 = 45210^2 + 45361^2 .

It is a cyclic number.

It is not a de Polignac number, because 4101564421 - 2¹³ = 4101556229 is a prime.

It is a super-2 number, since 2×4101564421² = 33645661399226130482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4101564421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4101564427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33619320 + ... + 33619441.

It is an arithmetic number, because the mean of its divisors is an integer number (1042200811).

Almost surely, 2^4101564421 is an apocalyptic number.

It is an amenable number.

4101564421 is a deficient number, since it is larger than the sum of its proper divisors (67238823).

4101564421 is an equidigital number, since it uses as much as digits as its factorization.

4101564421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67238822.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 4101564421 is about 64043.4572848781. The cubic root of 4101564421 is about 1600.7242061383.

The spelling of 4101564421 in words is "four billion, one hundred one million, five hundred sixty-four thousand, four hundred twenty-one".