2152140445 has 16 divisors (see below), whose sum is σ = 3178546560. Its totient is φ = 1362233664.

The previous prime is 2152140439. The next prime is 2152140461. The reversal of 2152140445 is 5440412512.

It is a cyclic number.

It is not a de Polignac number, because 2152140445 - 2³ = 2152140437 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2364535 + ... + 2365444.

It is an arithmetic number, because the mean of its divisors is an integer number (198659160).

Almost surely, 2^2152140445 is an apocalyptic number.

It is an amenable number.

2152140445 is a deficient number, since it is larger than the sum of its proper divisors (1026406115).

2152140445 is a wasteful number, since it uses less digits than its factorization.

2152140445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730004.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 2152140445 is about 46391.1677477513. The cubic root of 2152140445 is about 1291.0910475957.

Adding to 2152140445 its reverse (5440412512), we get a palindrome (7592552957).

The spelling of 2152140445 in words is "two billion, one hundred fifty-two million, one hundred forty thousand, four hundred forty-five".