2021152415 has 16 divisors (see below), whose sum is σ = 2505012480. Its totient is φ = 1563893760.

The previous prime is 2021152411. The next prime is 2021152453. The reversal of 2021152415 is 5142511202.

It is not a de Polignac number, because 2021152415 - 2² = 2021152411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021152411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514037 + ... + 517953.

It is an arithmetic number, because the mean of its divisors is an integer number (156563280).

Almost surely, 2^2021152415 is an apocalyptic number.

2021152415 is a deficient number, since it is larger than the sum of its proper divisors (483860065).

2021152415 is a wasteful number, since it uses less digits than its factorization.

2021152415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2021152415 is about 44957.2287290932. The cubic root of 2021152415 is about 1264.3472111948.

Adding to 2021152415 its reverse (5142511202), we get a palindrome (7163663617).

The spelling of 2021152415 in words is "two billion, twenty-one million, one hundred fifty-two thousand, four hundred fifteen".