127342861 has 4 divisors (see below), whose sum is σ = 128655772. Its totient is φ = 126029952.

The previous prime is 127342849. The next prime is 127342867. The reversal of 127342861 is 168243721.

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 98128836 + 29214025 = 9906^2 + 5405^2 .

It is a cyclic number.

It is not a de Polignac number, because 127342861 - 2¹⁷ = 127211789 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 (127342867) 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, 656310 + ... + 656503.

It is an arithmetic number, because the mean of its divisors is an integer number (32163943).

Almost surely, 2^127342861 is an apocalyptic number.

It is an amenable number.

127342861 is a deficient number, since it is larger than the sum of its proper divisors (1312911).

127342861 is an equidigital number, since it uses as much as digits as its factorization.

127342861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312910.

The product of its digits is 16128, while the sum is 34.

The square root of 127342861 is about 11284.6294134987. The cubic root of 127342861 is about 503.1044989447.

The spelling of 127342861 in words is "one hundred twenty-seven million, three hundred forty-two thousand, eight hundred sixty-one".