12153519049 has 9 divisors (see below), whose sum is σ = 14138664807. Its totient is φ = 10416640584.

The previous prime is 12153519041. The next prime is 12153519193. The reversal of 12153519049 is 94091535121.

The square root of 12153519049 is 110243.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 259435449 + 11894083600 = 16107^2 + 109060^2 .

It is not a de Polignac number, because 12153519049 - 2³ = 12153519041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12153519041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 763827 + ... + 779575.

Almost surely, 2^12153519049 is an apocalyptic number.

12153519049 is the 110243-rd square number.

12153519049 is the 55122-nd centered octagonal number.

It is an amenable number.

12153519049 is a deficient number, since it is larger than the sum of its proper divisors (1985145758).

12153519049 is an frugal number, since it uses more digits than its factorization.

12153519049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31512 (or 15756 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 12153519049 in words is "twelve billion, one hundred fifty-three million, five hundred nineteen thousand, forty-nine".