126818065 has 16 divisors (see below), whose sum is σ = 174755520. Its totient is φ = 87376320.

The previous prime is 126818063. The next prime is 126818071. The reversal of 126818065 is 560818621.

It is not a de Polignac number, because 126818065 - 2¹ = 126818063 is a prime.

It is a super-2 number, since 2×126818065² = 32165643220688450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126818063) 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, 59634 + ... + 61723.

It is an arithmetic number, because the mean of its divisors is an integer number (10922220).

Almost surely, 2^126818065 is an apocalyptic number.

It is an amenable number.

126818065 is a deficient number, since it is larger than the sum of its proper divisors (47937455).

126818065 is a wasteful number, since it uses less digits than its factorization.

126818065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121392.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 126818065 is about 11261.3527162593. The cubic root of 126818065 is about 502.4124283260.

The spelling of 126818065 in words is "one hundred twenty-six million, eight hundred eighteen thousand, sixty-five".