2145441075 has 48 divisors (see below), whose sum is σ = 3602626560. Its totient is φ = 1126471680.

The previous prime is 2145441073. The next prime is 2145441079. The reversal of 2145441075 is 5701445412.

It is not a de Polignac number, because 2145441075 - 2¹ = 2145441073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145441073) 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 47 ways as a sum of consecutive naturals, for example, 1490206 + ... + 1491644.

It is an arithmetic number, because the mean of its divisors is an integer number (75054720).

Almost surely, 2^2145441075 is an apocalyptic number.

2145441075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2145441075 is a deficient number, since it is larger than the sum of its proper divisors (1457185485).

2145441075 is a wasteful number, since it uses less digits than its factorization.

2145441075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748 (or 1743 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 2145441075 is about 46318.9062370864. The cubic root of 2145441075 is about 1289.7499815927.

Adding to 2145441075 its reverse (5701445412), we get a palindrome (7846886487).

The spelling of 2145441075 in words is "two billion, one hundred forty-five million, four hundred forty-one thousand, seventy-five".