126328877 has 4 divisors (see below), whose sum is σ = 126516156. Its totient is φ = 126141600.

The previous prime is 126328871. The next prime is 126328907. The reversal of 126328877 is 778823621.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 117050761 + 9278116 = 10819^2 + 3046^2 .

It is a cyclic number.

It is not a de Polignac number, because 126328877 - 2⁴ = 126328861 is a prime.

It is a super-2 number, since 2×126328877² = 31917970328162258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126328871) 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 in 3 ways as a sum of consecutive naturals, for example, 92624 + ... + 93977.

It is an arithmetic number, because the mean of its divisors is an integer number (31629039).

Almost surely, 2^126328877 is an apocalyptic number.

It is an amenable number.

126328877 is a deficient number, since it is larger than the sum of its proper divisors (187279).

126328877 is an equidigital number, since it uses as much as digits as its factorization.

126328877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187278.

The product of its digits is 225792, while the sum is 44.

The square root of 126328877 is about 11239.6119594940. The cubic root of 126328877 is about 501.7655940170.

The spelling of 126328877 in words is "one hundred twenty-six million, three hundred twenty-eight thousand, eight hundred seventy-seven".