127240403072 has 16 divisors (see below), whose sum is σ = 253486740750. Its totient is φ = 63620201472.

The previous prime is 127240403033. The next prime is 127240403231. The reversal of 127240403072 is 270304042721.

It can be written as a sum of positive squares in only one way, i.e., 85764636736 + 41475766336 = 292856^2 + 203656^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497032697 + ... + 497032952.

Almost surely, 2^127240403072 is an apocalyptic number.

It is an amenable number.

127240403072 is a deficient number, since it is larger than the sum of its proper divisors (126246337678).

127240403072 is an frugal number, since it uses more digits than its factorization.

127240403072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994065663 (or 994065651 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 127240403072 its reverse (270304042721), we get a palindrome (397544445793).

The spelling of 127240403072 in words is "one hundred twenty-seven billion, two hundred forty million, four hundred three thousand, seventy-two".