127840253 has 4 divisors (see below), whose sum is σ = 128579388. Its totient is φ = 127101120.

The previous prime is 127840243. The next prime is 127840261. The reversal of 127840253 is 352048721.

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 107391769 + 20448484 = 10363^2 + 4522^2 .

It is a cyclic number.

It is not a de Polignac number, because 127840253 - 2²⁶ = 60731389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127840243) 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, 369308 + ... + 369653.

It is an arithmetic number, because the mean of its divisors is an integer number (32144847).

Almost surely, 2^127840253 is an apocalyptic number.

It is an amenable number.

127840253 is a deficient number, since it is larger than the sum of its proper divisors (739135).

127840253 is an equidigital number, since it uses as much as digits as its factorization.

127840253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739134.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 127840253 is about 11306.6464081973. The cubic root of 127840253 is about 503.7586778794.

Adding to 127840253 its reverse (352048721), we get a palindrome (479888974).

The spelling of 127840253 in words is "one hundred twenty-seven million, eight hundred forty thousand, two hundred fifty-three".