127540432 has 20 divisors (see below), whose sum is σ = 248036580. Its totient is φ = 63531008.

The previous prime is 127540429. The next prime is 127540487. The reversal of 127540432 is 234045721.

It can be written as a sum of positive squares in 2 ways, for example, as 75064896 + 52475536 = 8664^2 + 7244^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 127540432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10513 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (12401829).

Almost surely, 2^127540432 is an apocalyptic number.

It is an amenable number.

127540432 is a deficient number, since it is larger than the sum of its proper divisors (120496148).

127540432 is a wasteful number, since it uses less digits than its factorization.

127540432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29910 (or 29904 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 127540432 is about 11293.3800077745. The cubic root of 127540432 is about 503.3645514703.

The spelling of 127540432 in words is "one hundred twenty-seven million, five hundred forty thousand, four hundred thirty-two".