90187106 has 8 divisors (see below), whose sum is σ = 135322320. Its totient is φ = 45079668.

The previous prime is 90187103. The next prime is 90187121. The reversal of 90187106 is 60178109.

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

It is not an unprimeable number, because it can be changed into a prime (90187103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6005 + ... + 14711.

It is an arithmetic number, because the mean of its divisors is an integer number (16915290).

Almost surely, 2^90187106 is an apocalyptic number.

90187106 is a deficient number, since it is larger than the sum of its proper divisors (45135214).

90187106 is a wasteful number, since it uses less digits than its factorization.

90187106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13888.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 90187106 is about 9496.6892125624. The cubic root of 90187106 is about 448.4508144039.

The spelling of 90187106 in words is "ninety million, one hundred eighty-seven thousand, one hundred six".