126063653 has 4 divisors (see below), whose sum is σ = 133479180. Its totient is φ = 118648128.

The previous prime is 126063647. The next prime is 126063703. The reversal of 126063653 is 356360621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 356360621 = 12143 ⋅29347.

It can be written as a sum of positive squares in 2 ways, for example, as 44649124 + 81414529 = 6682^2 + 9023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126063653 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 (126063053) 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, 3707738 + ... + 3707771.

It is an arithmetic number, because the mean of its divisors is an integer number (33369795).

Almost surely, 2^126063653 is an apocalyptic number.

It is an amenable number.

126063653 is a deficient number, since it is larger than the sum of its proper divisors (7415527).

126063653 is an equidigital number, since it uses as much as digits as its factorization.

126063653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7415526.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 126063653 is about 11227.8071322944. The cubic root of 126063653 is about 501.4142003039.

The spelling of 126063653 in words is "one hundred twenty-six million, sixty-three thousand, six hundred fifty-three".