12185140537 has 8 divisors (see below), whose sum is σ = 12716360640. Its totient is φ = 11654039760.

The previous prime is 12185140489. The next prime is 12185140547. The reversal of 12185140537 is 73504158121.

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

It is a cyclic number.

It is not a de Polignac number, because 12185140537 - 2²³ = 12176751929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12185140496 and 12185140505.

It is not an unprimeable number, because it can be changed into a prime (12185140547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225414 + ... + 274192.

It is an arithmetic number, because the mean of its divisors is an integer number (1589545080).

Almost surely, 2^12185140537 is an apocalyptic number.

It is an amenable number.

12185140537 is a deficient number, since it is larger than the sum of its proper divisors (531220103).

12185140537 is a wasteful number, since it uses less digits than its factorization.

12185140537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59663.

The product of its (nonzero) digits is 33600, while the sum is 37.

Adding to 12185140537 its reverse (73504158121), we get a palindrome (85689298658).

The spelling of 12185140537 in words is "twelve billion, one hundred eighty-five million, one hundred forty thousand, five hundred thirty-seven".