2145145134 has 32 divisors (see below), whose sum is σ = 4700787840. Its totient is φ = 647200800.

The previous prime is 2145145063. The next prime is 2145145151. The reversal of 2145145134 is 4315415412.

It is a congruent number.

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, 55852 + ... + 86079.

It is an arithmetic number, because the mean of its divisors is an integer number (146899620).

Almost surely, 2^2145145134 is an apocalyptic number.

2145145134 is an abundant number, since it is smaller than the sum of its proper divisors (2555642706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145145134 is a wasteful number, since it uses less digits than its factorization.

2145145134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142176.

The product of its digits is 9600, while the sum is 30.

The square root of 2145145134 is about 46315.7115242765. The cubic root of 2145145134 is about 1289.6906763904.

The spelling of 2145145134 in words is "two billion, one hundred forty-five million, one hundred forty-five thousand, one hundred thirty-four".