2153436012 has 144 divisors (see below), whose sum is σ = 6800265472. Its totient is φ = 559405440.

The previous prime is 2153435993. The next prime is 2153436017. The reversal of 2153436012 is 2106343512.

2153436012 is a `hidden beast` number, since 2 + 1 + 53 + 4 + 3 + 601 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (2153436017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214587 + ... + 224397.

Almost surely, 2^2153436012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153436012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3400132736).

2153436012 is an abundant number, since it is smaller than the sum of its proper divisors (4646829460).

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

2153436012 is a wasteful number, since it uses less digits than its factorization.

2153436012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9908 (or 9903 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2153436012 is about 46405.1291561612. The cubic root of 2153436012 is about 1291.3500702542.

Adding to 2153436012 its reverse (2106343512), we get a palindrome (4259779524).

The spelling of 2153436012 in words is "two billion, one hundred fifty-three million, four hundred thirty-six thousand, twelve".