2145164288 has 44 divisors (see below), whose sum is σ = 4426629312. Its totient is φ = 1037967360.

The previous prime is 2145164269. The next prime is 2145164293. The reversal of 2145164288 is 8824615412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2045 + ... + 65532.

Almost surely, 2^2145164288 is an apocalyptic number.

It is an amenable number.

2145164288 is an abundant number, since it is smaller than the sum of its proper divisors (2281465024).

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

2145164288 is an equidigital number, since it uses as much as digits as its factorization.

2145164288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67628 (or 67610 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 2145164288 is about 46315.9183002993. The cubic root of 2145164288 is about 1289.6945149281.

The spelling of 2145164288 in words is "two billion, one hundred forty-five million, one hundred sixty-four thousand, two hundred eighty-eight".