2146125545 has 4 divisors (see below), whose sum is σ = 2575350660. Its totient is φ = 1716900432.

The previous prime is 2146125539. The next prime is 2146125557. The reversal of 2146125545 is 5455216412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 853866841 + 1292258704 = 29221^2 + 35948^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146125545 - 2⁶ = 2146125481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214612550 + ... + 214612559.

It is an arithmetic number, because the mean of its divisors is an integer number (643837665).

Almost surely, 2^2146125545 is an apocalyptic number.

It is an amenable number.

2146125545 is a deficient number, since it is larger than the sum of its proper divisors (429225115).

2146125545 is an equidigital number, since it uses as much as digits as its factorization.

2146125545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429225114.

The product of its digits is 48000, while the sum is 35.

The square root of 2146125545 is about 46326.2943154317. The cubic root of 2146125545 is about 1289.8871253120.

The spelling of 2146125545 in words is "two billion, one hundred forty-six million, one hundred twenty-five thousand, five hundred forty-five".