90819245 has 8 divisors (see below), whose sum is σ = 118890720. Its totient is φ = 66050320.

The previous prime is 90819229. The next prime is 90819251. The reversal of 90819245 is 54291809.

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

It is not a de Polignac number, because 90819245 - 2⁴ = 90819229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90819199 and 90819208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825575 + ... + 825684.

It is an arithmetic number, because the mean of its divisors is an integer number (14861340).

Almost surely, 2^90819245 is an apocalyptic number.

It is an amenable number.

90819245 is a deficient number, since it is larger than the sum of its proper divisors (28071475).

90819245 is a wasteful number, since it uses less digits than its factorization.

90819245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651275.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 90819245 is about 9529.9131685446. The cubic root of 90819245 is about 449.4961356228.

The spelling of 90819245 in words is "ninety million, eight hundred nineteen thousand, two hundred forty-five".