2152321434 has 12 divisors (see below), whose sum is σ = 4663363146. Its totient is φ = 717440472.

The previous prime is 2152321429. The next prime is 2152321447. The reversal of 2152321434 is 4341232512.

It can be written as a sum of positive squares in only one way, i.e., 1583642025 + 568679409 = 39795^2 + 23847^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2152321398 and 2152321407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59786689 + ... + 59786724.

Almost surely, 2^2152321434 is an apocalyptic number.

2152321434 is an abundant number, since it is smaller than the sum of its proper divisors (2511041712).

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

2152321434 is a wasteful number, since it uses less digits than its factorization.

2152321434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119573421 (or 119573418 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2152321434 is about 46393.1183905544. The cubic root of 2152321434 is about 1291.1272389647.

Adding to 2152321434 its reverse (4341232512), we get a palindrome (6493553946).

The spelling of 2152321434 in words is "two billion, one hundred fifty-two million, three hundred twenty-one thousand, four hundred thirty-four".