126506653 has 16 divisors (see below), whose sum is σ = 158032000. Its totient is φ = 98594496.

The previous prime is 126506623. The next prime is 126506659. The reversal of 126506653 is 356605621.

It is not a de Polignac number, because 126506653 - 2¹³ = 126498461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126506659) 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, 4278 + ... + 16471.

It is an arithmetic number, because the mean of its divisors is an integer number (9877000).

Almost surely, 2^126506653 is an apocalyptic number.

126506653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126506653 is a deficient number, since it is larger than the sum of its proper divisors (31525347).

126506653 is a wasteful number, since it uses less digits than its factorization.

126506653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20836.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 126506653 is about 11247.5176372389. The cubic root of 126506653 is about 502.0008531596. Note that the first 3 decimals are identical.

The spelling of 126506653 in words is "one hundred twenty-six million, five hundred six thousand, six hundred fifty-three".