127715212156 has 12 divisors (see below), whose sum is σ = 255430424368. Its totient is φ = 54735090912.

The previous prime is 127715212147. The next prime is 127715212171. The reversal of 127715212156 is 651212517721.

127715212156 is an admirable number.

It is a super-2 number, since 2×127715212156² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 2280628761 + ... + 2280628816.

Almost surely, 2^127715212156 is an apocalyptic number.

It is an amenable number.

127715212156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

127715212156 is a wasteful number, since it uses less digits than its factorization.

127715212156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561257588 (or 4561257586 counting only the distinct ones).

The product of its digits is 58800, while the sum is 40.

Adding to 127715212156 its reverse (651212517721), we get a palindrome (778927729877).

The spelling of 127715212156 in words is "one hundred twenty-seven billion, seven hundred fifteen million, two hundred twelve thousand, one hundred fifty-six".