2021020148 has 24 divisors (see below), whose sum is σ = 4043256000. Its totient is φ = 865891008.

The previous prime is 2021020147. The next prime is 2021020171. The reversal of 2021020148 is 8410201202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021020147) 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 7 ways as a sum of consecutive naturals, for example, 105968 + ... + 123576.

It is an arithmetic number, because the mean of its divisors is an integer number (168469000).

Almost surely, 2^2021020148 is an apocalyptic number.

2021020148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2021020148 is an abundant number, since it is smaller than the sum of its proper divisors (2022235852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021020148 is a wasteful number, since it uses less digits than its factorization.

2021020148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21719 (or 21717 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 2021020148 is about 44955.7576735172. The cubic root of 2021020148 is about 1264.3196303851.

The spelling of 2021020148 in words is "two billion, twenty-one million, twenty thousand, one hundred forty-eight".