12087699145 has 8 divisors (see below), whose sum is σ = 14508502920. Its totient is φ = 9667983360.

The previous prime is 12087699137. The next prime is 12087699161. The reversal of 12087699145 is 54199678021.

It can be written as a sum of positive squares in 4 ways, for example, as 4790439369 + 7297259776 = 69213^2 + 85424^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12087699145 - 2³ = 12087699137 is a prime.

It is a super-2 number, since 2×12087699145² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12087699092 and 12087699101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247350 + ... + 292159.

It is an arithmetic number, because the mean of its divisors is an integer number (1813562865).

Almost surely, 2^12087699145 is an apocalyptic number.

It is an amenable number.

12087699145 is a deficient number, since it is larger than the sum of its proper divisors (2420803775).

12087699145 is an equidigital number, since it uses as much as digits as its factorization.

12087699145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543995.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 12087699145 in words is "twelve billion, eighty-seven million, six hundred ninety-nine thousand, one hundred forty-five".