127418945 has 8 divisors (see below), whose sum is σ = 154997736. Its totient is φ = 100538496.

The previous prime is 127418923. The next prime is 127418957. The reversal of 127418945 is 549814721.

It is a Cunningham number, because it is equal to 11288²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 127418944 = 1^2 + 11288^2 .

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 127418945 - 2¹⁰ = 127417921 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174182 + ... + 174911.

It is an arithmetic number, because the mean of its divisors is an integer number (19374717).

Almost surely, 2^127418945 is an apocalyptic number.

It is an amenable number.

127418945 is a deficient number, since it is larger than the sum of its proper divisors (27578791).

127418945 is an equidigital number, since it uses as much as digits as its factorization.

127418945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349171.

The product of its digits is 80640, while the sum is 41.

The square root of 127418945 is about 11288.0000442948. Note that the first 4 decimals coincide. The cubic root of 127418945 is about 503.2046762182.

The spelling of 127418945 in words is "one hundred twenty-seven million, four hundred eighteen thousand, nine hundred forty-five".