126746365 has 4 divisors (see below), whose sum is σ = 152095644. Its totient is φ = 101397088.

The previous prime is 126746363. The next prime is 126746369. The reversal of 126746365 is 563647621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563647621 = 103 ⋅5472307.

It can be written as a sum of positive squares in 2 ways, for example, as 27604516 + 99141849 = 5254^2 + 9957^2 .

It is a cyclic number.

It is not a de Polignac number, because 126746365 - 2¹ = 126746363 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126746363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12674632 + ... + 12674641.

It is an arithmetic number, because the mean of its divisors is an integer number (38023911).

Almost surely, 2^126746365 is an apocalyptic number.

It is an amenable number.

126746365 is a deficient number, since it is larger than the sum of its proper divisors (25349279).

126746365 is an equidigital number, since it uses as much as digits as its factorization.

126746365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25349278.

The product of its digits is 181440, while the sum is 40.

The square root of 126746365 is about 11258.1688120227. The cubic root of 126746365 is about 502.3177263551.

The spelling of 126746365 in words is "one hundred twenty-six million, seven hundred forty-six thousand, three hundred sixty-five".