2143451241 has 24 divisors (see below), whose sum is σ = 3214251040. Its totient is φ = 1427416992.

The previous prime is 2143451227. The next prime is 2143451243. The reversal of 2143451241 is 1421543412.

2143451241 is a `hidden beast` number, since 2 + 143 + 4 + 512 + 4 + 1 = 666.

It is not a de Polignac number, because 2143451241 - 2²² = 2139256937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143451243) 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, 246750 + ... + 255288.

Almost surely, 2^2143451241 is an apocalyptic number.

It is an amenable number.

2143451241 is a deficient number, since it is larger than the sum of its proper divisors (1070799799).

2143451241 is an equidigital number, since it uses as much as digits as its factorization.

2143451241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587 (or 9575 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 2143451241 is about 46297.4215372735. The cubic root of 2143451241 is about 1289.3511230983.

Adding to 2143451241 its reverse (1421543412), we get a palindrome (3564994653).

The spelling of 2143451241 in words is "two billion, one hundred forty-three million, four hundred fifty-one thousand, two hundred forty-one".