127912733 has 8 divisors (see below), whose sum is σ = 137849208. Its totient is φ = 117990144.

The previous prime is 127912679. The next prime is 127912753. The reversal of 127912733 is 337219721.

It can be written as a sum of positive squares in 4 ways, for example, as 10125124 + 117787609 = 3182^2 + 10853^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 127912733 - 2¹⁰ = 127911709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 127912693 and 127912702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127912753) 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, 23441 + ... + 28377.

It is an arithmetic number, because the mean of its divisors is an integer number (17231151).

Almost surely, 2^127912733 is an apocalyptic number.

127912733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

127912733 is a deficient number, since it is larger than the sum of its proper divisors (9936475).

127912733 is a wasteful number, since it uses less digits than its factorization.

127912733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943.

The product of its digits is 15876, while the sum is 35.

The square root of 127912733 is about 11309.8511484458. The cubic root of 127912733 is about 503.8538631594.

The spelling of 127912733 in words is "one hundred twenty-seven million, nine hundred twelve thousand, seven hundred thirty-three".