2145453533 has 16 divisors (see below), whose sum is σ = 2407320000. Its totient is φ = 1900092672.

The previous prime is 2145453529. The next prime is 2145453551. The reversal of 2145453533 is 3353545412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2145453533 - 2² = 2145453529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2145453493 and 2145453502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145453503) 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 15 ways as a sum of consecutive naturals, for example, 25838 + ... + 70416.

It is an arithmetic number, because the mean of its divisors is an integer number (150457500).

Almost surely, 2^2145453533 is an apocalyptic number.

It is an amenable number.

2145453533 is a deficient number, since it is larger than the sum of its proper divisors (261866467).

2145453533 is a wasteful number, since it uses less digits than its factorization.

2145453533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44764.

The product of its digits is 108000, while the sum is 35.

The square root of 2145453533 is about 46319.0407176142. The cubic root of 2145453533 is about 1289.7524779984.

Adding to 2145453533 its reverse (3353545412), we get a palindrome (5498998945).

The spelling of 2145453533 in words is "two billion, one hundred forty-five million, four hundred fifty-three thousand, five hundred thirty-three".