126553733 has 4 divisors (see below), whose sum is σ = 126596448. Its totient is φ = 126511020.

The previous prime is 126553723. The next prime is 126553747. The reversal of 126553733 is 337355621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126553733 - 2¹⁴ = 126537349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126553693 and 126553702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126553703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16553 + ... + 22958.

It is an arithmetic number, because the mean of its divisors is an integer number (31649112).

Almost surely, 2^126553733 is an apocalyptic number.

It is an amenable number.

126553733 is a deficient number, since it is larger than the sum of its proper divisors (42715).

126553733 is an equidigital number, since it uses as much as digits as its factorization.

126553733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42714.

The product of its digits is 56700, while the sum is 35.

The square root of 126553733 is about 11249.6103488076. The cubic root of 126553733 is about 502.0631193682.

The spelling of 126553733 in words is "one hundred twenty-six million, five hundred fifty-three thousand, seven hundred thirty-three".