2124251545 has 16 divisors (see below), whose sum is σ = 2746290960. Its totient is φ = 1568047104.

The previous prime is 2124251513. The next prime is 2124251567. The reversal of 2124251545 is 5451524212.

It can be written as a sum of positive squares in 8 ways, for example, as 1990921 + 2122260624 = 1411^2 + 46068^2 .

It is not a de Polignac number, because 2124251545 - 2⁵ = 2124251513 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211477 + ... + 221293.

It is an arithmetic number, because the mean of its divisors is an integer number (171643185).

Almost surely, 2^2124251545 is an apocalyptic number.

It is an amenable number.

2124251545 is a deficient number, since it is larger than the sum of its proper divisors (622039415).

2124251545 is a wasteful number, since it uses less digits than its factorization.

2124251545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13164.

The product of its digits is 16000, while the sum is 31.

The square root of 2124251545 is about 46089.6034372178. The cubic root of 2124251545 is about 1285.4898373251.

Adding to 2124251545 its reverse (5451524212), we get a palindrome (7575775757).

The spelling of 2124251545 in words is "two billion, one hundred twenty-four million, two hundred fifty-one thousand, five hundred forty-five".