126278745 has 16 divisors (see below), whose sum is σ = 206745792. Its totient is φ = 65782080.

The previous prime is 126278741. The next prime is 126278753. The reversal of 126278745 is 547872621.

It is not a de Polignac number, because 126278745 - 2² = 126278741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126278697 and 126278706.

It is not an unprimeable number, because it can be changed into a prime (126278741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97246 + ... + 98535.

It is an arithmetic number, because the mean of its divisors is an integer number (12921612).

Almost surely, 2^126278745 is an apocalyptic number.

126278745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126278745 is a deficient number, since it is larger than the sum of its proper divisors (80467047).

126278745 is a wasteful number, since it uses less digits than its factorization.

126278745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195832.

The product of its digits is 188160, while the sum is 42.

The square root of 126278745 is about 11237.3815900324. The cubic root of 126278745 is about 501.6992121479.

The spelling of 126278745 in words is "one hundred twenty-six million, two hundred seventy-eight thousand, seven hundred forty-five".