90303121 has 8 divisors (see below), whose sum is σ = 93075840. Its totient is φ = 87565968.

The previous prime is 90303077. The next prime is 90303127. The reversal of 90303121 is 12130309.

It is the 3880-th star number.

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

It is a cyclic number.

It is not a de Polignac number, because 90303121 - 2²³ = 81914513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90303127) 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, 3691 + ... + 13936.

It is an arithmetic number, because the mean of its divisors is an integer number (11634480).

Almost surely, 2^90303121 is an apocalyptic number.

It is an amenable number.

90303121 is a deficient number, since it is larger than the sum of its proper divisors (2772719).

90303121 is a wasteful number, since it uses less digits than its factorization.

90303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17783.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 90303121 is about 9502.7954308193. The cubic root of 90303121 is about 448.6430249117.

The spelling of 90303121 in words is "ninety million, three hundred three thousand, one hundred twenty-one".