2120453542 has 8 divisors (see below), whose sum is σ = 3348084600. Its totient is φ = 1004425344.

The previous prime is 2120453527. The next prime is 2120453549. The reversal of 2120453542 is 2453540212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2120453542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120453549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27900667 + ... + 27900742.

It is an arithmetic number, because the mean of its divisors is an integer number (418510575).

Almost surely, 2^2120453542 is an apocalyptic number.

2120453542 is a deficient number, since it is larger than the sum of its proper divisors (1227631058).

2120453542 is a wasteful number, since it uses less digits than its factorization.

2120453542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55801430.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2120453542 is about 46048.3826208913. The cubic root of 2120453542 is about 1284.7232603646.

Adding to 2120453542 its reverse (2453540212), we get a palindrome (4573993754).

The spelling of 2120453542 in words is "two billion, one hundred twenty million, four hundred fifty-three thousand, five hundred forty-two".