90185134 has 16 divisors (see below), whose sum is σ = 153352080. Its totient is φ = 39432960.

The previous prime is 90185111. The next prime is 90185143. The reversal of 90185134 is 43158109.

It is a junction number, because it is equal to n+sod(n) for n = 90185096 and 90185105.

It is a congruent number.

It is an unprimeable number.

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, 90787 + ... + 91774.

It is an arithmetic number, because the mean of its divisors is an integer number (9584505).

Almost surely, 2^90185134 is an apocalyptic number.

90185134 is a deficient number, since it is larger than the sum of its proper divisors (63166946).

90185134 is a wasteful number, since it uses less digits than its factorization.

90185134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182595.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 90185134 is about 9496.5853863376. The cubic root of 90185134 is about 448.4475458234.

The spelling of 90185134 in words is "ninety million, one hundred eighty-five thousand, one hundred thirty-four".