126905027 has 4 divisors (see below), whose sum is σ = 127562760. Its totient is φ = 126247296.

The previous prime is 126904993. The next prime is 126905087. The reversal of 126905027 is 720509621.

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

It is a cyclic number.

It is not a de Polignac number, because 126905027 - 2¹² = 126900931 is a prime.

It is a super-2 number, since 2×126905027² = 32209771755741458, 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 = 126904984 and 126905002.

It is not an unprimeable number, because it can be changed into a prime (126905087) 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, 328577 + ... + 328962.

It is an arithmetic number, because the mean of its divisors is an integer number (31890690).

Almost surely, 2^126905027 is an apocalyptic number.

126905027 is a deficient number, since it is larger than the sum of its proper divisors (657733).

126905027 is an equidigital number, since it uses as much as digits as its factorization.

126905027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657732.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 126905027 is about 11265.2131360219. The cubic root of 126905027 is about 502.5272405882.

The spelling of 126905027 in words is "one hundred twenty-six million, nine hundred five thousand, twenty-seven".