2145302545 has 16 divisors (see below), whose sum is σ = 2634508800. Its totient is φ = 1676294464.

The previous prime is 2145302527. The next prime is 2145302563. The reversal of 2145302545 is 5452035412.

It is an interprime number because it is at equal distance from previous prime (2145302527) and next prime (2145302563).

It is a cyclic number.

It is not a de Polignac number, because 2145302545 - 2¹⁷ = 2145171473 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 109131 + ... + 127279.

It is an arithmetic number, because the mean of its divisors is an integer number (164656800).

Almost surely, 2^2145302545 is an apocalyptic number.

It is an amenable number.

2145302545 is a deficient number, since it is larger than the sum of its proper divisors (489206255).

2145302545 is a wasteful number, since it uses less digits than its factorization.

2145302545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18704.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2145302545 is about 46317.4108192589. The cubic root of 2145302545 is about 1289.7222215029.

Adding to 2145302545 its reverse (5452035412), we get a palindrome (7597337957).

The spelling of 2145302545 in words is "two billion, one hundred forty-five million, three hundred two thousand, five hundred forty-five".