2141230545 has 40 divisors (see below), whose sum is σ = 3841992000. Its totient is φ = 1140907680.

The previous prime is 2141230523. The next prime is 2141230547. The reversal of 2141230545 is 5450321412.

It is not a de Polignac number, because 2141230545 - 2¹⁹ = 2140706257 is a prime.

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

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2141230547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 610206 + ... + 613704.

It is an arithmetic number, because the mean of its divisors is an integer number (96049800).

Almost surely, 2^2141230545 is an apocalyptic number.

It is an amenable number.

2141230545 is a deficient number, since it is larger than the sum of its proper divisors (1700761455).

2141230545 is a wasteful number, since it uses less digits than its factorization.

2141230545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027 (or 5018 counting only the distinct ones).

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

The square root of 2141230545 is about 46273.4323883587. The cubic root of 2141230545 is about 1288.9056971718.

Adding to 2141230545 its reverse (5450321412), we get a palindrome (7591551957).

The spelling of 2141230545 in words is "two billion, one hundred forty-one million, two hundred thirty thousand, five hundred forty-five".