4127945 has 8 divisors (see below), whose sum is σ = 4965000. Its totient is φ = 3294720.

The previous prime is 4127933. The next prime is 4127951. The reversal of 4127945 is 5497214.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 727609 + 3400336 = 853^2 + 1844^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4127945 - 2¹⁰ = 4126921 is a prime.

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, 2681 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (620625).

Almost surely, 2^4127945 is an apocalyptic number.

It is an amenable number.

4127945 is a deficient number, since it is larger than the sum of its proper divisors (837055).

4127945 is a wasteful number, since it uses less digits than its factorization.

4127945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915.

The product of its digits is 10080, while the sum is 32.

The square root of 4127945 is about 2031.7344806839. The cubic root of 4127945 is about 160.4148738391.

The spelling of 4127945 in words is "four million, one hundred twenty-seven thousand, nine hundred forty-five".