107128426 has 4 divisors (see below), whose sum is σ = 160692642. Its totient is φ = 53564212.

The previous prime is 107128391. The next prime is 107128429. The reversal of 107128426 is 624821701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 86471401 + 20657025 = 9299^2 + 4545^2 .

It is a super-2 number, since 2×107128426² = 22952999314474952, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26782105 + ... + 26782108.

Almost surely, 2^107128426 is an apocalyptic number.

107128426 is a deficient number, since it is larger than the sum of its proper divisors (53564216).

107128426 is an equidigital number, since it uses as much as digits as its factorization.

107128426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53564215.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 107128426 is about 10350.2862762341. The cubic root of 107128426 is about 474.9358007417.

The spelling of 107128426 in words is "one hundred seven million, one hundred twenty-eight thousand, four hundred twenty-six".