12158925241 has 4 divisors (see below), whose sum is σ = 12166091892. Its totient is φ = 12151758592.

The previous prime is 12158925221. The next prime is 12158925277. The reversal of 12158925241 is 14252985121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10402980025 + 1755945216 = 101995^2 + 41904^2 .

It is a cyclic number.

It is not a de Polignac number, because 12158925241 - 2¹⁷ = 12158794169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12158925194 and 12158925203.

It is not an unprimeable number, because it can be changed into a prime (12158925211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3580780 + ... + 3584173.

It is an arithmetic number, because the mean of its divisors is an integer number (3041522973).

Almost surely, 2^12158925241 is an apocalyptic number.

It is an amenable number.

12158925241 is a deficient number, since it is larger than the sum of its proper divisors (7166651).

12158925241 is an equidigital number, since it uses as much as digits as its factorization.

12158925241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7166650.

The product of its digits is 57600, while the sum is 40.

The spelling of 12158925241 in words is "twelve billion, one hundred fifty-eight million, nine hundred twenty-five thousand, two hundred forty-one".