2145145132 has 24 divisors (see below), whose sum is σ = 4047674400. Its totient is φ = 988866816.

The previous prime is 2145145063. The next prime is 2145145151. The reversal of 2145145132 is 2315415412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145145132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19044 + ... + 68212.

It is an arithmetic number, because the mean of its divisors is an integer number (168653100).

Almost surely, 2^2145145132 is an apocalyptic number.

It is an amenable number.

2145145132 is a deficient number, since it is larger than the sum of its proper divisors (1902529268).

2145145132 is a wasteful number, since it uses less digits than its factorization.

2145145132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50025 (or 50023 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 2145145132 is about 46315.7115026856. The cubic root of 2145145132 is about 1289.6906759896.

The spelling of 2145145132 in words is "two billion, one hundred forty-five million, one hundred forty-five thousand, one hundred thirty-two".