90126543 has 16 divisors (see below), whose sum is σ = 129760736. Its totient is φ = 55313280.

The previous prime is 90126527. The next prime is 90126563. The reversal of 90126543 is 34562109.

It is not a de Polignac number, because 90126543 - 2⁴ = 90126527 is a prime.

It is the 9494-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90126543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90126563) by changing a digit.

It is a nontrivial repunit in base 9493.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12573 + ... + 18393.

It is an arithmetic number, because the mean of its divisors is an integer number (8110046).

Almost surely, 2^90126543 is an apocalyptic number.

90126543 is a deficient number, since it is larger than the sum of its proper divisors (39634193).

90126543 is a wasteful number, since it uses less digits than its factorization.

90126543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 90126543 is about 9493.5000395007. The cubic root of 90126543 is about 448.3504097763.

The spelling of 90126543 in words is "ninety million, one hundred twenty-six thousand, five hundred forty-three".