90271459 has 4 divisors (see below), whose sum is σ = 91542960. Its totient is φ = 88999960.

The previous prime is 90271429. The next prime is 90271471. The reversal of 90271459 is 95417209.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90271459 - 2¹⁹ = 89747171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90271409) 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, 635644 + ... + 635785.

It is an arithmetic number, because the mean of its divisors is an integer number (22885740).

Almost surely, 2^90271459 is an apocalyptic number.

90271459 is a deficient number, since it is larger than the sum of its proper divisors (1271501).

90271459 is a wasteful number, since it uses less digits than its factorization.

90271459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271500.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 90271459 is about 9501.1293539242. The cubic root of 90271459 is about 448.5905845095.

It can be divided in two parts, 902 and 71459, that added together give a square (72361 = 269²).

The spelling of 90271459 in words is "ninety million, two hundred seventy-one thousand, four hundred fifty-nine".