127430705 has 8 divisors (see below), whose sum is σ = 152998632. Its totient is φ = 101890048.

The previous prime is 127430689. The next prime is 127430767. The reversal of 127430705 is 507034721.

It can be written as a sum of positive squares in 4 ways, for example, as 41460721 + 85969984 = 6439^2 + 9272^2 .

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 127430705 - 2⁴ = 127430689 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, 5489 + ... + 16881.

It is an arithmetic number, because the mean of its divisors is an integer number (19124829).

Almost surely, 2^127430705 is an apocalyptic number.

It is an amenable number.

127430705 is a deficient number, since it is larger than the sum of its proper divisors (25567927).

127430705 is a wasteful number, since it uses less digits than its factorization.

127430705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13635.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 127430705 is about 11288.5209394322. The cubic root of 127430705 is about 503.2201566607.

The spelling of 127430705 in words is "one hundred twenty-seven million, four hundred thirty thousand, seven hundred five".