127542147 has 8 divisors (see below), whose sum is σ = 170425344. Its totient is φ = 84843528.

The previous prime is 127542139. The next prime is 127542167. The reversal of 127542147 is 741245721.

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

It is not a de Polignac number, because 127542147 - 2³ = 127542139 is a prime.

It is a super-2 number, since 2×127542147² = 32533998522739218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127542127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44523 + ... + 47300.

It is an arithmetic number, because the mean of its divisors is an integer number (21303168).

Almost surely, 2^127542147 is an apocalyptic number.

127542147 is a deficient number, since it is larger than the sum of its proper divisors (42883197).

127542147 is an equidigital number, since it uses as much as digits as its factorization.

127542147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92289.

The product of its digits is 15680, while the sum is 33.

The square root of 127542147 is about 11293.4559369575. The cubic root of 127542147 is about 503.3668076602.

Adding to 127542147 its reverse (741245721), we get a palindrome (868787868).

The spelling of 127542147 in words is "one hundred twenty-seven million, five hundred forty-two thousand, one hundred forty-seven".