2021519136 has 288 divisors, whose sum is σ = 6903646848. Its totient is φ = 504299520.

The previous prime is 2021519119. The next prime is 2021519167. The reversal of 2021519136 is 6319151202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3153376 + ... + 3154016.

It is an arithmetic number, because the mean of its divisors is an integer number (23970996).

Almost surely, 2^2021519136 is an apocalyptic number.

2021519136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021519136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3451823424).

2021519136 is an abundant number, since it is smaller than the sum of its proper divisors (4882127712).

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

2021519136 is a wasteful number, since it uses less digits than its factorization.

2021519136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2021519136 is about 44961.3070984374. The cubic root of 2021519136 is about 1264.4236749374.

The spelling of 2021519136 in words is "two billion, twenty-one million, five hundred nineteen thousand, one hundred thirty-six".