2152140140 has 12 divisors (see below), whose sum is σ = 4519494336. Its totient is φ = 860856048.

The previous prime is 2152140131. The next prime is 2152140191. The reversal of 2152140140 is 410412512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 107607007 = 2152140140 / (2 + 1 + 5 + 2 + 1 + 4 + 0 + 1 + 4 + 0).

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, 53803484 + ... + 53803523.

It is an arithmetic number, because the mean of its divisors is an integer number (376624528).

Almost surely, 2^2152140140 is an apocalyptic number.

2152140140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152140140 is an abundant number, since it is smaller than the sum of its proper divisors (2367354196).

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

2152140140 is a wasteful number, since it uses less digits than its factorization.

2152140140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107607016 (or 107607014 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2152140140 is about 46391.1644604875. The cubic root of 2152140140 is about 1291.0909866048.

Adding to 2152140140 its reverse (410412512), we get a palindrome (2562552652).

The spelling of 2152140140 in words is "two billion, one hundred fifty-two million, one hundred forty thousand, one hundred forty".