132581469 has 8 divisors (see below), whose sum is σ = 176996512. Its totient is φ = 88277040.

The previous prime is 132581399. The next prime is 132581503. The reversal of 132581469 is 964185231.

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

It is not a de Polignac number, because 132581469 - 2⁹ = 132580957 is a prime.

It is a super-2 number, since 2×132581469² = 35155691844395922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132589469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24814 + ... + 29679.

It is an arithmetic number, because the mean of its divisors is an integer number (22124564).

Almost surely, 2^132581469 is an apocalyptic number.

It is an amenable number.

132581469 is a deficient number, since it is larger than the sum of its proper divisors (44415043).

132581469 is an equidigital number, since it uses as much as digits as its factorization.

132581469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55307.

The product of its digits is 51840, while the sum is 39.

The square root of 132581469 is about 11514.4026766481. The cubic root of 132581469 is about 509.9108763910.

The spelling of 132581469 in words is "one hundred thirty-two million, five hundred eighty-one thousand, four hundred sixty-nine".