127791552 has 56 divisors (see below), whose sum is σ = 386421376. Its totient is φ = 36511488.

The previous prime is 127791541. The next prime is 127791553. The reversal of 127791552 is 255197721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 127791552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127791553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46198 + ... + 48885.

Almost surely, 2^127791552 is an apocalyptic number.

127791552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127791552 is an abundant number, since it is smaller than the sum of its proper divisors (258629824).

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

127791552 is an equidigital number, since it uses as much as digits as its factorization.

127791552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95105 (or 95095 counting only the distinct ones).

The product of its digits is 44100, while the sum is 39.

The square root of 127791552 is about 11304.4925582708. The cubic root of 127791552 is about 503.6947004628.

It can be divided in two parts, 1277 and 91552, that added together give a palindrome (92829).

The spelling of 127791552 in words is "one hundred twenty-seven million, seven hundred ninety-one thousand, five hundred fifty-two".