127256113 has 4 divisors (see below), whose sum is σ = 127300900. Its totient is φ = 127211328.

The previous prime is 127256111. The next prime is 127256137. The reversal of 127256113 is 311652721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77933584 + 49322529 = 8828^2 + 7023^2 .

It is a cyclic number.

It is not a de Polignac number, because 127256113 - 2¹ = 127256111 is a prime.

It is a super-3 number, since 3×127256113³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127256111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17820 + ... + 23917.

It is an arithmetic number, because the mean of its divisors is an integer number (31825225).

Almost surely, 2^127256113 is an apocalyptic number.

It is an amenable number.

127256113 is a deficient number, since it is larger than the sum of its proper divisors (44787).

127256113 is an equidigital number, since it uses as much as digits as its factorization.

127256113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44786.

The product of its digits is 2520, while the sum is 28.

The square root of 127256113 is about 11280.7851233857. The cubic root of 127256113 is about 502.9902320418.

The spelling of 127256113 in words is "one hundred twenty-seven million, two hundred fifty-six thousand, one hundred thirteen".