5145001021 has 2 divisors, whose sum is σ = 5145001022. Its totient is φ = 5145001020.

The previous prime is 5145001007. The next prime is 5145001061. The reversal of 5145001021 is 1201005415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4189325625 + 955675396 = 64725^2 + 30914^2 .

It is a cyclic number.

It is not a de Polignac number, because 5145001021 - 2¹¹ = 5144998973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5145001021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5145001061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2572500510 + 2572500511.

It is an arithmetic number, because the mean of its divisors is an integer number (2572500511).

Almost surely, 2^5145001021 is an apocalyptic number.

It is an amenable number.

5145001021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5145001021 is an equidigital number, since it uses as much as digits as its factorization.

5145001021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 5145001021 is about 71728.6624788167. The cubic root of 5145001021 is about 1726.3485662264.

Adding to 5145001021 its reverse (1201005415), we get a palindrome (6346006436).

The spelling of 5145001021 in words is "five billion, one hundred forty-five million, one thousand, twenty-one".