12140155136 has 36 divisors (see below), whose sum is σ = 25286503872. Its totient is φ = 5806158336.

The previous prime is 12140155123. The next prime is 12140155147. The reversal of 12140155136 is 63155104121.

It is a super-2 number, since 2×12140155136² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12140155099 and 12140155108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025036 + ... + 1036811.

Almost surely, 2^12140155136 is an apocalyptic number.

12140155136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12140155136 is an abundant number, since it is smaller than the sum of its proper divisors (13146348736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12140155136 is an equidigital number, since it uses as much as digits as its factorization.

12140155136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061886 (or 2061872 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 12140155136 its reverse (63155104121), we get a palindrome (75295259257).

The spelling of 12140155136 in words is "twelve billion, one hundred forty million, one hundred fifty-five thousand, one hundred thirty-six".