90141 has 4 divisors (see below), whose sum is σ = 120192. Its totient is φ = 60092.

The previous prime is 90127. The next prime is 90149. The reversal of 90141 is 14109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14109 = 3 ⋅4703.

It is a cyclic number.

It is not a de Polignac number, because 90141 - 2¹¹ = 88093 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 90141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15021 + ... + 15026.

It is an arithmetic number, because the mean of its divisors is an integer number (30048).

2⁹⁰¹⁴¹ is an apocalyptic number.

It is an amenable number.

90141 is a deficient number, since it is larger than the sum of its proper divisors (30051).

90141 is a wasteful number, since it uses less digits than its factorization.

90141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30050.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 90141 is about 300.2349080304. The cubic root of 90141 is about 44.8374381461.

It can be divided in two parts, 90 and 141, that added together give a triangular number (231 = T₂₁).

The spelling of 90141 in words is "ninety thousand, one hundred forty-one".