2145148650 has 96 divisors (see below), whose sum is σ = 5944411200. Its totient is φ = 568814400.

The previous prime is 2145148639. The next prime is 2145148739. The reversal of 2145148650 is 568415412.

It is a happy number.

2145148650 is a `hidden beast` number, since 2 + 14 + 514 + 86 + 50 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239961 + ... + 248739.

It is an arithmetic number, because the mean of its divisors is an integer number (61920950).

Almost surely, 2^2145148650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145148650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2972205600).

2145148650 is an abundant number, since it is smaller than the sum of its proper divisors (3799262550).

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

2145148650 is a wasteful number, since it uses less digits than its factorization.

2145148650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8981 (or 8970 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 2145148650 is about 46315.7494811430. The cubic root of 2145148650 is about 1289.6913810125.

The spelling of 2145148650 in words is "two billion, one hundred forty-five million, one hundred forty-eight thousand, six hundred fifty".