126181533 has 16 divisors (see below), whose sum is σ = 169735680. Its totient is φ = 83378496.

The previous prime is 126181487. The next prime is 126181541. The reversal of 126181533 is 335181621.

It is not a de Polignac number, because 126181533 - 2¹⁸ = 125919389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126181533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126181543) 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 15 ways as a sum of consecutive naturals, for example, 263188 + ... + 263666.

It is an arithmetic number, because the mean of its divisors is an integer number (10608480).

Almost surely, 2^126181533 is an apocalyptic number.

It is an amenable number.

126181533 is a deficient number, since it is larger than the sum of its proper divisors (43554147).

126181533 is a wasteful number, since it uses less digits than its factorization.

126181533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076.

The product of its digits is 4320, while the sum is 30.

The square root of 126181533 is about 11233.0553724265. The cubic root of 126181533 is about 501.5704396080.

The spelling of 126181533 in words is "one hundred twenty-six million, one hundred eighty-one thousand, five hundred thirty-three".