2043215451 has 24 divisors (see below), whose sum is σ = 3000525840. Its totient is φ = 1339500096.

The previous prime is 2043215437. The next prime is 2043215459. The reversal of 2043215451 is 1545123402.

2043215451 is a `hidden beast` number, since 204 + 3 + 2 + 1 + 5 + 451 = 666.

It is not a de Polignac number, because 2043215451 - 2⁹ = 2043214939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2043215459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391165 + ... + 396353.

It is an arithmetic number, because the mean of its divisors is an integer number (125021910).

Almost surely, 2^2043215451 is an apocalyptic number.

2043215451 is a deficient number, since it is larger than the sum of its proper divisors (957310389).

2043215451 is a wasteful number, since it uses less digits than its factorization.

2043215451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915 (or 5912 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2043215451 is about 45201.9407879794. The cubic root of 2043215451 is about 1268.9311384110.

Adding to 2043215451 its reverse (1545123402), we get a palindrome (3588338853).

The spelling of 2043215451 in words is "two billion, forty-three million, two hundred fifteen thousand, four hundred fifty-one".