2141243545 has 16 divisors (see below), whose sum is σ = 2971946880. Its totient is φ = 1450589184.

The previous prime is 2141243543. The next prime is 2141243549. The reversal of 2141243545 is 5453421412.

It is a cyclic number.

It is not a de Polignac number, because 2141243545 - 2¹ = 2141243543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2141243543) 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, 365640 + ... + 371449.

It is an arithmetic number, because the mean of its divisors is an integer number (185746680).

Almost surely, 2^2141243545 is an apocalyptic number.

It is an amenable number.

2141243545 is a deficient number, since it is larger than the sum of its proper divisors (830703335).

2141243545 is an equidigital number, since it uses as much as digits as its factorization.

2141243545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737184.

The product of its digits is 19200, while the sum is 31.

The square root of 2141243545 is about 46273.5728575177. The cubic root of 2141243545 is about 1288.9083056002.

Adding to 2141243545 its reverse (5453421412), we get a palindrome (7594664957).

The spelling of 2141243545 in words is "two billion, one hundred forty-one million, two hundred forty-three thousand, five hundred forty-five".