2157529348 has 24 divisors (see below), whose sum is σ = 4176011672. Its totient is φ = 968868864.

The previous prime is 2157529267. The next prime is 2157529393. The reversal of 2157529348 is 8439257512.

It can be written as a sum of positive squares in 4 ways, for example, as 987342084 + 1170187264 = 31422^2 + 34208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2157529298 and 2157529307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558765 + ... + 562612.

Almost surely, 2^2157529348 is an apocalyptic number.

It is an amenable number.

2157529348 is a deficient number, since it is larger than the sum of its proper divisors (2018482324).

2157529348 is a wasteful number, since it uses less digits than its factorization.

2157529348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121431 (or 1121429 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 2157529348 is about 46449.2125659844. The cubic root of 2157529348 is about 1292.1677687292.

The spelling of 2157529348 in words is "two billion, one hundred fifty-seven million, five hundred twenty-nine thousand, three hundred forty-eight".