2156246522 has 8 divisors (see below), whose sum is σ = 3234954996. Its totient is φ = 1077928192.

The previous prime is 2156246501. The next prime is 2156246531. The reversal of 2156246522 is 2256426512.

It can be written as a sum of positive squares in 2 ways, for example, as 1530296161 + 625950361 = 39119^2 + 25019^2 .

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

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, 83303 + ... + 106074.

Almost surely, 2^2156246522 is an apocalyptic number.

2156246522 is a deficient number, since it is larger than the sum of its proper divisors (1078708474).

2156246522 is a wasteful number, since it uses less digits than its factorization.

2156246522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195072.

The product of its digits is 57600, while the sum is 35.

The square root of 2156246522 is about 46435.4016026566. The cubic root of 2156246522 is about 1291.9116184786.

The spelling of 2156246522 in words is "two billion, one hundred fifty-six million, two hundred forty-six thousand, five hundred twenty-two".