2012135553 has 8 divisors (see below), whose sum is σ = 2980941600. Its totient is φ = 1341423684.

The previous prime is 2012135501. The next prime is 2012135563. The reversal of 2012135553 is 3555312102.

It is a happy number.

It is not a de Polignac number, because 2012135553 - 2¹⁷ = 2012004481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 74523539 = 2012135553 / (2 + 0 + 1 + 2 + 1 + 3 + 5 + 5 + 5 + 3).

It is not an unprimeable number, because it can be changed into a prime (2012135563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37261743 + ... + 37261796.

It is an arithmetic number, because the mean of its divisors is an integer number (372617700).

Almost surely, 2^2012135553 is an apocalyptic number.

It is an amenable number.

2012135553 is a deficient number, since it is larger than the sum of its proper divisors (968806047).

2012135553 is an equidigital number, since it uses as much as digits as its factorization.

2012135553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74523548 (or 74523542 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 2012135553 is about 44856.8339609474. The cubic root of 2012135553 is about 1262.4642194611.

Adding to 2012135553 its reverse (3555312102), we get a palindrome (5567447655).

The spelling of 2012135553 in words is "two billion, twelve million, one hundred thirty-five thousand, five hundred fifty-three".