2145441045 has 64 divisors (see below), whose sum is σ = 3794807808. Its totient is φ = 1026432000.

The previous prime is 2145440951. The next prime is 2145441047. The reversal of 2145441045 is 5401445412.

It is not a de Polignac number, because 2145441045 - 2⁸ = 2145440789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145441047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6481530 + ... + 6481860.

It is an arithmetic number, because the mean of its divisors is an integer number (59293872).

Almost surely, 2^2145441045 is an apocalyptic number.

It is an amenable number.

2145441045 is a deficient number, since it is larger than the sum of its proper divisors (1649366763).

2145441045 is a wasteful number, since it uses less digits than its factorization.

2145441045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754.

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 2145441045 is about 46318.9059132445. The cubic root of 2145441045 is about 1289.7499755811.

Adding to 2145441045 its reverse (5401445412), we get a palindrome (7546886457).

The spelling of 2145441045 in words is "two billion, one hundred forty-five million, four hundred forty-one thousand, forty-five".