2120452541 has 4 divisors (see below), whose sum is σ = 2120671584. Its totient is φ = 2120233500.

The previous prime is 2120452513. The next prime is 2120452549. The reversal of 2120452541 is 1452540212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120452541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120452541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120452549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94295 + ... + 114596.

It is an arithmetic number, because the mean of its divisors is an integer number (530167896).

Almost surely, 2^2120452541 is an apocalyptic number.

It is an amenable number.

2120452541 is a deficient number, since it is larger than the sum of its proper divisors (219043).

2120452541 is a wasteful number, since it uses less digits than its factorization.

2120452541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219042.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2120452541 is about 46048.3717518872. The cubic root of 2120452541 is about 1284.7230582053.

Adding to 2120452541 its reverse (1452540212), we get a palindrome (3572992753).

The spelling of 2120452541 in words is "two billion, one hundred twenty million, four hundred fifty-two thousand, five hundred forty-one".