126678445 has 16 divisors (see below), whose sum is σ = 153703872. Its totient is φ = 100224000.

The previous prime is 126678443. The next prime is 126678451. The reversal of 126678445 is 544876621.

It is not a de Polignac number, because 126678445 - 2¹ = 126678443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126678443) by changing a digit.

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, 241954 + ... + 242476.

It is an arithmetic number, because the mean of its divisors is an integer number (9606492).

Almost surely, 2^126678445 is an apocalyptic number.

It is an amenable number.

126678445 is a deficient number, since it is larger than the sum of its proper divisors (27025427).

126678445 is a wasteful number, since it uses less digits than its factorization.

126678445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its digits is 322560, while the sum is 43.

The square root of 126678445 is about 11255.1519314490. The cubic root of 126678445 is about 502.2279840944.

It can be divided in two parts, 12667 and 8445, that added together give a palindrome (21112).

The spelling of 126678445 in words is "one hundred twenty-six million, six hundred seventy-eight thousand, four hundred forty-five".