2106240045 has 32 divisors (see below), whose sum is σ = 4147675392. Its totient is φ = 888786432.

The previous prime is 2106240013. The next prime is 2106240047. The reversal of 2106240045 is 5400426012.

It is not a de Polignac number, because 2106240045 - 2⁵ = 2106240013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2106239997 and 2106240024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106240047) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 770152 + ... + 772881.

It is an arithmetic number, because the mean of its divisors is an integer number (129614856).

Almost surely, 2^2106240045 is an apocalyptic number.

It is an amenable number.

2106240045 is a deficient number, since it is larger than the sum of its proper divisors (2041435347).

2106240045 is a wasteful number, since it uses less digits than its factorization.

2106240045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543061.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2106240045 is about 45893.7909199055. The cubic root of 2106240045 is about 1281.8463030558.

Adding to 2106240045 its reverse (5400426012), we get a palindrome (7506666057).

The spelling of 2106240045 in words is "two billion, one hundred six million, two hundred forty thousand, forty-five".