90158271 has 16 divisors (see below), whose sum is σ = 137996544. Its totient is φ = 51289344.

The previous prime is 90158251. The next prime is 90158273. The reversal of 90158271 is 17285109.

It is not a de Polignac number, because 90158271 - 2⁵ = 90158239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90158273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4690 + ... + 14223.

It is an arithmetic number, because the mean of its divisors is an integer number (8624784).

Almost surely, 2^90158271 is an apocalyptic number.

90158271 is a deficient number, since it is larger than the sum of its proper divisors (47838273).

90158271 is a wasteful number, since it uses less digits than its factorization.

90158271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 90158271 is about 9495.1709305310. The cubic root of 90158271 is about 448.4030157840.

The spelling of 90158271 in words is "ninety million, one hundred fifty-eight thousand, two hundred seventy-one".