2021529413 has 4 divisors (see below), whose sum is σ = 2022050208. Its totient is φ = 2021008620.

The previous prime is 2021529383. The next prime is 2021529421. The reversal of 2021529413 is 3149251202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021529413 - 2⁸ = 2021529157 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 (2021529463) by changing a digit.

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, 254531 + ... + 262352.

It is an arithmetic number, because the mean of its divisors is an integer number (505512552).

Almost surely, 2^2021529413 is an apocalyptic number.

It is an amenable number.

2021529413 is a deficient number, since it is larger than the sum of its proper divisors (520795).

2021529413 is an equidigital number, since it uses as much as digits as its factorization.

2021529413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520794.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2021529413 is about 44961.4213854500. The cubic root of 2021529413 is about 1264.4258176263.

The spelling of 2021529413 in words is "two billion, twenty-one million, five hundred twenty-nine thousand, four hundred thirteen".