4153010021 has 4 divisors (see below), whose sum is σ = 4153458444. Its totient is φ = 4152561600.

The previous prime is 4153009997. The next prime is 4153010023. The reversal of 4153010021 is 1200103514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2437890625 + 1715119396 = 49375^2 + 41414^2 .

It is a cyclic number.

It is not a de Polignac number, because 4153010021 - 2⁶ = 4153009957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4153010023) 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, 210020 + ... + 228941.

It is an arithmetic number, because the mean of its divisors is an integer number (1038364611).

Almost surely, 2^4153010021 is an apocalyptic number.

It is an amenable number.

4153010021 is a deficient number, since it is larger than the sum of its proper divisors (448423).

4153010021 is an equidigital number, since it uses as much as digits as its factorization.

4153010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448422.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 4153010021 is about 64443.8516927721. The cubic root of 4153010021 is about 1607.3890039271.

Adding to 4153010021 its reverse (1200103514), we get a palindrome (5353113535).

The spelling of 4153010021 in words is "four billion, one hundred fifty-three million, ten thousand, twenty-one".