90103013 has 48 divisors (see below), whose sum is σ = 125126400. Its totient is φ = 64421280.

The previous prime is 90102989. The next prime is 90103049. The reversal of 90103013 is 31030109.

It is not a de Polignac number, because 90103013 - 2¹² = 90098917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90102982 and 90103000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90103313) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 539456 + ... + 539622.

It is an arithmetic number, because the mean of its divisors is an integer number (2606800).

Almost surely, 2^90103013 is an apocalyptic number.

It is an amenable number.

90103013 is a deficient number, since it is larger than the sum of its proper divisors (35023387).

90103013 is a wasteful number, since it uses less digits than its factorization.

90103013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 90103013 is about 9492.2606896355. The cubic root of 90103013 is about 448.3113883330.

The spelling of 90103013 in words is "ninety million, one hundred three thousand, thirteen".