12175541137 has 4 divisors (see below), whose sum is σ = 12312345060. Its totient is φ = 12038737216.

The previous prime is 12175541129. The next prime is 12175541141. The reversal of 12175541137 is 73114557121.

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 904746241 + 11270794896 = 30079^2 + 106164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12175541137 - 2³ = 12175541129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12175541096 and 12175541105.

It is not an unprimeable number, because it can be changed into a prime (12175541237) 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, 68401828 + ... + 68402005.

It is an arithmetic number, because the mean of its divisors is an integer number (3078086265).

Almost surely, 2^12175541137 is an apocalyptic number.

It is an amenable number.

12175541137 is a deficient number, since it is larger than the sum of its proper divisors (136803923).

12175541137 is an equidigital number, since it uses as much as digits as its factorization.

12175541137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136803922.

The product of its digits is 29400, while the sum is 37.

The spelling of 12175541137 in words is "twelve billion, one hundred seventy-five million, five hundred forty-one thousand, one hundred thirty-seven".