127538773 has 6 divisors (see below), whose sum is σ = 134605014. Its totient is φ = 120825864.

The previous prime is 127538759. The next prime is 127538783. The reversal of 127538773 is 377835721.

It can be written as a sum of positive squares in only one way, i.e., 118526769 + 9012004 = 10887^2 + 3002^2 .

It is not a de Polignac number, because 127538773 - 2⁹ = 127538261 is a prime.

It is a super-2 number, since 2×127538773² = 32532277236691058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127538783) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176286 + ... + 177007.

It is an arithmetic number, because the mean of its divisors is an integer number (22434169).

Almost surely, 2^127538773 is an apocalyptic number.

It is an amenable number.

127538773 is a deficient number, since it is larger than the sum of its proper divisors (7066241).

127538773 is an equidigital number, since it uses as much as digits as its factorization.

127538773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353331 (or 353312 counting only the distinct ones).

The product of its digits is 246960, while the sum is 43.

The square root of 127538773 is about 11293.3065574260. The cubic root of 127538773 is about 503.3623689325.

The spelling of 127538773 in words is "one hundred twenty-seven million, five hundred thirty-eight thousand, seven hundred seventy-three".