2145200645134 has 32 divisors (see below), whose sum is σ = 3298734720000. Its totient is φ = 1046036887584.

The previous prime is 2145200645123. The next prime is 2145200645143. The reversal of 2145200645134 is 4315460025412.

It is a junction number, because it is equal to n+sod(n) for n = 2145200645093 and 2145200645102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3959487 + ... + 4468549.

It is an arithmetic number, because the mean of its divisors is an integer number (103085460000).

Almost surely, 2^{2145200645134} is an apocalyptic number.

2145200645134 is a deficient number, since it is larger than the sum of its proper divisors (1153534074866).

2145200645134 is a wasteful number, since it uses less digits than its factorization.

2145200645134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509472.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 2145200645134 in words is "two trillion, one hundred forty-five billion, two hundred million, six hundred forty-five thousand, one hundred thirty-four".