90351215 has 8 divisors (see below), whose sum is σ = 108854928. Its totient is φ = 71992000.

The previous prime is 90351203. The next prime is 90351223. The reversal of 90351215 is 51215309.

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

It is not a de Polignac number, because 90351215 - 2⁸ = 90350959 is a prime.

It is a Duffinian number.

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, 34742 + ... + 37251.

It is an arithmetic number, because the mean of its divisors is an integer number (13606866).

Almost surely, 2^90351215 is an apocalyptic number.

90351215 is a deficient number, since it is larger than the sum of its proper divisors (18503713).

90351215 is a wasteful number, since it uses less digits than its factorization.

90351215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72249.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 90351215 is about 9505.3256125185. The cubic root of 90351215 is about 448.7226574796.

The spelling of 90351215 in words is "ninety million, three hundred fifty-one thousand, two hundred fifteen".