107128427 has 8 divisors (see below), whose sum is σ = 122496000. Its totient is φ = 91776744.

The previous prime is 107128391. The next prime is 107128429. The reversal of 107128427 is 724821701.

It is a happy number.

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 107128427 - 2⁶ = 107128363 is a prime.

It is a super-2 number, since 2×107128427² = 22952999742988658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107128393 and 107128402.

It is not an unprimeable number, because it can be changed into a prime (107128429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20774 + ... + 25412.

It is an arithmetic number, because the mean of its divisors is an integer number (15312000).

Almost surely, 2^107128427 is an apocalyptic number.

107128427 is a deficient number, since it is larger than the sum of its proper divisors (15367573).

107128427 is an equidigital number, since it uses as much as digits as its factorization.

107128427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 107128427 is about 10350.2863245419. The cubic root of 107128427 is about 474.9358022195.

The spelling of 107128427 in words is "one hundred seven million, one hundred twenty-eight thousand, four hundred twenty-seven".