2150722945 has 12 divisors (see below), whose sum is σ = 3002234004. Its totient is φ = 1474781280.

The previous prime is 2150722943. The next prime is 2150722957. The reversal of 2150722945 is 5492270512.

It can be written as a sum of positive squares in 2 ways, for example, as 1301117041 + 849605904 = 36071^2 + 29148^2 .

It is not a de Polignac number, because 2150722945 - 2¹ = 2150722943 is a prime.

It is a super-2 number, since 2×2150722945² = 9251218372298946050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2150722943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4388986 + ... + 4389475.

It is an arithmetic number, because the mean of its divisors is an integer number (250186167).

Almost surely, 2^2150722945 is an apocalyptic number.

It is an amenable number.

2150722945 is a deficient number, since it is larger than the sum of its proper divisors (851511059).

2150722945 is an equidigital number, since it uses as much as digits as its factorization.

2150722945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8778480 (or 8778473 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2150722945 is about 46375.8875386768. The cubic root of 2150722945 is about 1290.8075277612.

The spelling of 2150722945 in words is "two billion, one hundred fifty million, seven hundred twenty-two thousand, nine hundred forty-five".