126647855 has 16 divisors (see below), whose sum is σ = 156510144. Its totient is φ = 98311680.

The previous prime is 126647827. The next prime is 126647861. The reversal of 126647855 is 558746621.

It is not a de Polignac number, because 126647855 - 2¹⁰ = 126646831 is a prime.

It is a super-2 number, since 2×126647855² = 32079358352202050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92375 + ... + 93735.

It is an arithmetic number, because the mean of its divisors is an integer number (9781884).

Almost surely, 2^126647855 is an apocalyptic number.

126647855 is a deficient number, since it is larger than the sum of its proper divisors (29862289).

126647855 is a wasteful number, since it uses less digits than its factorization.

126647855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906.

The product of its digits is 403200, while the sum is 44.

The square root of 126647855 is about 11253.7929161683. The cubic root of 126647855 is about 502.1875552463.

The spelling of 126647855 in words is "one hundred twenty-six million, six hundred forty-seven thousand, eight hundred fifty-five".