5212020145 has 4 divisors (see below), whose sum is σ = 6254424180. Its totient is φ = 4169616112.

The previous prime is 5212020139. The next prime is 5212020161. The reversal of 5212020145 is 5410202125.

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 3268180224 + 1943839921 = 57168^2 + 44089^2 .

It is a cyclic number.

It is not a de Polignac number, because 5212020145 - 2⁵ = 5212020113 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521202010 + ... + 521202019.

It is an arithmetic number, because the mean of its divisors is an integer number (1563606045).

Almost surely, 2^5212020145 is an apocalyptic number.

It is an amenable number.

5212020145 is a deficient number, since it is larger than the sum of its proper divisors (1042404035).

5212020145 is a wasteful number, since it uses less digits than its factorization.

5212020145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042404034.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 5212020145 is about 72194.3221105372. The cubic root of 5212020145 is about 1733.8120961966.

The spelling of 5212020145 in words is "five billion, two hundred twelve million, twenty thousand, one hundred forty-five".