2021463145 has 8 divisors (see below), whose sum is σ = 2612352456. Its totient is φ = 1492772736.

The previous prime is 2021463137. The next prime is 2021463151. The reversal of 2021463145 is 5413641202.

It can be written as a sum of positive squares in 4 ways, for example, as 185940496 + 1835522649 = 13636^2 + 42843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021463145 - 2³ = 2021463137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15549652 + ... + 15549781.

It is an arithmetic number, because the mean of its divisors is an integer number (326544057).

Almost surely, 2^2021463145 is an apocalyptic number.

It is an amenable number.

2021463145 is a deficient number, since it is larger than the sum of its proper divisors (590889311).

2021463145 is a wasteful number, since it uses less digits than its factorization.

2021463145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31099451.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2021463145 is about 44960.6844365163. The cubic root of 2021463145 is about 1264.4120010435.

The spelling of 2021463145 in words is "two billion, twenty-one million, four hundred sixty-three thousand, one hundred forty-five".