2161925282 has 8 divisors (see below), whose sum is σ = 3537695952. Its totient is φ = 982693300.

The previous prime is 2161925261. The next prime is 2161925287. The reversal of 2161925282 is 2825291612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2161925287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49134644 + ... + 49134687.

It is an arithmetic number, because the mean of its divisors is an integer number (442211994).

Almost surely, 2^2161925282 is an apocalyptic number.

2161925282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2161925282 is a deficient number, since it is larger than the sum of its proper divisors (1375770670).

2161925282 is a wasteful number, since it uses less digits than its factorization.

2161925282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98269344.

The product of its digits is 34560, while the sum is 38.

The square root of 2161925282 is about 46496.5082775040. The cubic root of 2161925282 is about 1293.0447642554.

The spelling of 2161925282 in words is "two billion, one hundred sixty-one million, nine hundred twenty-five thousand, two hundred eighty-two".