2145202176 has 156 divisors (see below), whose sum is σ = 6199669608. Its totient is φ = 659423232.

The previous prime is 2145202133. The next prime is 2145202183. The reversal of 2145202176 is 6712025412.

It is a tau number, because it is divible by the number of its divisors (156).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2076156 + ... + 2077188.

Almost surely, 2^2145202176 is an apocalyptic number.

2145202176 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145202176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3099834804).

2145202176 is an abundant number, since it is smaller than the sum of its proper divisors (4054467432).

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

2145202176 is a wasteful number, since it uses less digits than its factorization.

2145202176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2145202176 is about 46316.3273155374. The cubic root of 2145202176 is about 1289.7021077667.

Adding to 2145202176 its reverse (6712025412), we get a palindrome (8857227588).

The spelling of 2145202176 in words is "two billion, one hundred forty-five million, two hundred two thousand, one hundred seventy-six".