2145541013 has 16 divisors (see below), whose sum is σ = 2708828160. Its totient is φ = 1650682800.

The previous prime is 2145541003. The next prime is 2145541019. The reversal of 2145541013 is 3101455412.

It is a cyclic number.

It is not a de Polignac number, because 2145541013 - 2⁶ = 2145540949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145541019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170273 + ... + 182438.

It is an arithmetic number, because the mean of its divisors is an integer number (169301760).

Almost surely, 2^2145541013 is an apocalyptic number.

It is an amenable number.

2145541013 is a deficient number, since it is larger than the sum of its proper divisors (563287147).

2145541013 is a wasteful number, since it uses less digits than its factorization.

2145541013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352808.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2145541013 is about 46319.9850280632. The cubic root of 2145541013 is about 1289.7700074720.

Adding to 2145541013 its reverse (3101455412), we get a palindrome (5246996425).

The spelling of 2145541013 in words is "two billion, one hundred forty-five million, five hundred forty-one thousand, thirteen".