89132481 has 15 divisors (see below), whose sum is σ = 133275571. Its totient is φ = 59365008.

The previous prime is 89132443. The next prime is 89132497. The reversal of 89132481 is 18423198.

The square root of 89132481 is 9441.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 80838081 + 8294400 = 8991^2 + 2880^2 .

It is not a de Polignac number, because 89132481 - 2⁷ = 89132353 is a prime.

It is a super-2 number, since 2×89132481² = 15889198338430722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89132441) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 84445 + ... + 85493.

Almost surely, 2^89132481 is an apocalyptic number.

89132481 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

89132481 is the 9441-st square number.

89132481 is the 4721-st centered octagonal number.

It is an amenable number.

89132481 is a deficient number, since it is larger than the sum of its proper divisors (44143090).

89132481 is an frugal number, since it uses more digits than its factorization.

89132481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 1052 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The cubic root of 89132481 is about 446.6959330221.

Multiplying 89132481 by its sum of digits (36), we get a square (3208769316 = 56646²).

The spelling of 89132481 in words is "eighty-nine million, one hundred thirty-two thousand, four hundred eighty-one".