132543440 has 20 divisors (see below), whose sum is σ = 308163684. Its totient is φ = 53017344.

The previous prime is 132543413. The next prime is 132543451. The reversal of 132543440 is 44345231.

It can be written as a sum of positive squares in 2 ways, for example, as 88134544 + 44408896 = 9388^2 + 6664^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828317 + ... + 828476.

Almost surely, 2^132543440 is an apocalyptic number.

132543440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132543440 is an abundant number, since it is smaller than the sum of its proper divisors (175620244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132543440 is a wasteful number, since it uses less digits than its factorization.

132543440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656806 (or 1656800 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 132543440 is about 11512.7511916136. The cubic root of 132543440 is about 509.8621183074.

Adding to 132543440 its reverse (44345231), we get a palindrome (176888671).

The spelling of 132543440 in words is "one hundred thirty-two million, five hundred forty-three thousand, four hundred forty".