90248109 has 8 divisors (see below), whose sum is σ = 137520960. Its totient is φ = 51570336.

The previous prime is 90248057. The next prime is 90248117. The reversal of 90248109 is 90184209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90248109 - 2¹¹ = 90246061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90248109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90248009) 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 7 ways as a sum of consecutive naturals, for example, 2148744 + ... + 2148785.

It is an arithmetic number, because the mean of its divisors is an integer number (17190120).

Almost surely, 2^90248109 is an apocalyptic number.

It is an amenable number.

90248109 is a deficient number, since it is larger than the sum of its proper divisors (47272851).

90248109 is a wasteful number, since it uses less digits than its factorization.

90248109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297539.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 90248109 is about 9499.9004731629. The cubic root of 90248109 is about 448.5519030571.

The spelling of 90248109 in words is "ninety million, two hundred forty-eight thousand, one hundred nine".