2153020140 has 36 divisors (see below), whose sum is σ = 6530828304. Its totient is φ = 574138656.

The previous prime is 2153020109. The next prime is 2153020141. The reversal of 2153020140 is 410203512.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2153020141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5980432 + ... + 5980791.

Almost surely, 2^2153020140 is an apocalyptic number.

2153020140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153020140 is an abundant number, since it is smaller than the sum of its proper divisors (4377808164).

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

2153020140 is a wasteful number, since it uses less digits than its factorization.

2153020140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11961238 (or 11961233 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2153020140 is about 46400.6480558192. The cubic root of 2153020140 is about 1291.2669363064.

Adding to 2153020140 its reverse (410203512), we get a palindrome (2563223652).

The spelling of 2153020140 in words is "two billion, one hundred fifty-three million, twenty thousand, one hundred forty".