2124122545 has 48 divisors (see below), whose sum is σ = 2826880560. Its totient is φ = 1530023936.

The previous prime is 2124122531. The next prime is 2124122563. The reversal of 2124122545 is 5452214212.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 2322576 + 2121799969 = 1524^2 + 46063^2 .

It is not a de Polignac number, because 2124122545 - 2⁵ = 2124122513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7249419 + ... + 7249711.

It is an arithmetic number, because the mean of its divisors is an integer number (58893345).

Almost surely, 2^2124122545 is an apocalyptic number.

It is an amenable number.

2124122545 is a deficient number, since it is larger than the sum of its proper divisors (702758015).

2124122545 is a wasteful number, since it uses less digits than its factorization.

2124122545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 517 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 2124122545 is about 46088.2039680437. The cubic root of 2124122545 is about 1285.4638153683.

Adding to 2124122545 its reverse (5452214212), we get a palindrome (7576336757).

The spelling of 2124122545 in words is "two billion, one hundred twenty-four million, one hundred twenty-two thousand, five hundred forty-five".