126440567 has 16 divisors (see below), whose sum is σ = 140404992. Its totient is φ = 112907520.

The previous prime is 126440557. The next prime is 126440569. The reversal of 126440567 is 765044621.

It is not a de Polignac number, because 126440567 - 2¹⁴ = 126424183 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 (126440569) 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, 173558 + ... + 174284.

It is an arithmetic number, because the mean of its divisors is an integer number (8775312).

Almost surely, 2^126440567 is an apocalyptic number.

126440567 is a deficient number, since it is larger than the sum of its proper divisors (13964425).

126440567 is a wasteful number, since it uses less digits than its factorization.

126440567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 126440567 is about 11244.5794496726. The cubic root of 126440567 is about 501.9134242745.

The spelling of 126440567 in words is "one hundred twenty-six million, four hundred forty thousand, five hundred sixty-seven".