127870065 has 12 divisors (see below), whose sum is σ = 221641524. Its totient is φ = 68197344.

The previous prime is 127870031. The next prime is 127870081. The reversal of 127870065 is 560078721.

It can be written as a sum of positive squares in 2 ways, for example, as 74857104 + 53012961 = 8652^2 + 7281^2 .

It is not a de Polignac number, because 127870065 - 2¹⁷ = 127738993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1420734 + ... + 1420823.

It is an arithmetic number, because the mean of its divisors is an integer number (18470127).

Almost surely, 2^127870065 is an apocalyptic number.

127870065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127870065 is a deficient number, since it is larger than the sum of its proper divisors (93771459).

127870065 is a wasteful number, since it uses less digits than its factorization.

127870065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841568 (or 2841565 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 127870065 is about 11307.9646709742. The cubic root of 127870065 is about 503.7978332214.

The spelling of 127870065 in words is "one hundred twenty-seven million, eight hundred seventy thousand, sixty-five".