2145413405 has 16 divisors (see below), whose sum is σ = 2773024320. Its totient is φ = 1588180608.

The previous prime is 2145413383. The next prime is 2145413407. The reversal of 2145413405 is 5043145412.

It is a cyclic number.

It is not a de Polignac number, because 2145413405 - 2¹² = 2145409309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145413407) 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, 258512 + ... + 266681.

It is an arithmetic number, because the mean of its divisors is an integer number (173314020).

Almost surely, 2^2145413405 is an apocalyptic number.

It is an amenable number.

2145413405 is a deficient number, since it is larger than the sum of its proper divisors (627610915).

2145413405 is a wasteful number, since it uses less digits than its factorization.

2145413405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525260.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2145413405 is about 46318.6075459960. The cubic root of 2145413405 is about 1289.7444368843.

Adding to 2145413405 its reverse (5043145412), we get a palindrome (7188558817).

The spelling of 2145413405 in words is "two billion, one hundred forty-five million, four hundred thirteen thousand, four hundred five".