2120453546 has 4 divisors (see below), whose sum is σ = 3180680322. Its totient is φ = 1060226772.

The previous prime is 2120453527. The next prime is 2120453549. The reversal of 2120453546 is 6453540212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2057076025 + 63377521 = 45355^2 + 7961^2 .

It is a Curzon 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 as a sum of consecutive naturals, namely, 530113385 + ... + 530113388.

Almost surely, 2^2120453546 is an apocalyptic number.

2120453546 is a deficient number, since it is larger than the sum of its proper divisors (1060226776).

2120453546 is a wasteful number, since it uses less digits than its factorization.

2120453546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060226775.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2120453546 is about 46048.3826643238. The cubic root of 2120453546 is about 1284.7232611724.

Adding to 2120453546 its reverse (6453540212), we get a palindrome (8573993758).

The spelling of 2120453546 in words is "two billion, one hundred twenty million, four hundred fifty-three thousand, five hundred forty-six".