126865245 has 16 divisors (see below), whose sum is σ = 218598912. Its totient is φ = 62456640.

The previous prime is 126865243. The next prime is 126865273. The reversal of 126865245 is 542568621.

It is not a de Polignac number, because 126865245 - 2¹ = 126865243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126865243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325101 + ... + 325490.

It is an arithmetic number, because the mean of its divisors is an integer number (13662432).

Almost surely, 2^126865245 is an apocalyptic number.

126865245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126865245 is a deficient number, since it is larger than the sum of its proper divisors (91733667).

126865245 is a wasteful number, since it uses less digits than its factorization.

126865245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650612.

The product of its digits is 115200, while the sum is 39.

The square root of 126865245 is about 11263.4472964541. The cubic root of 126865245 is about 502.4747246018.

The spelling of 126865245 in words is "one hundred twenty-six million, eight hundred sixty-five thousand, two hundred forty-five".