90154894 has 8 divisors (see below), whose sum is σ = 141112080. Its totient is φ = 43117536.

The previous prime is 90154873. The next prime is 90154907. The reversal of 90154894 is 49845109.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 979899 + ... + 979990.

It is an arithmetic number, because the mean of its divisors is an integer number (17639010).

Almost surely, 2^90154894 is an apocalyptic number.

90154894 is a deficient number, since it is larger than the sum of its proper divisors (50957186).

90154894 is a wasteful number, since it uses less digits than its factorization.

90154894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959914.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 90154894 is about 9494.9931016299. The cubic root of 90154894 is about 448.3974172003.

The spelling of 90154894 in words is "ninety million, one hundred fifty-four thousand, eight hundred ninety-four".