132521340 has 48 divisors (see below), whose sum is σ = 424069632. Its totient is φ = 30290496.

The previous prime is 132521297. The next prime is 132521351. The reversal of 132521340 is 43125231.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157344 + ... + 158183.

It is an arithmetic number, because the mean of its divisors is an integer number (8834784).

Almost surely, 2^132521340 is an apocalyptic number.

132521340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132521340 is an abundant number, since it is smaller than the sum of its proper divisors (291548292).

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

132521340 is a wasteful number, since it uses less digits than its factorization.

132521340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315546 (or 315544 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 132521340 is about 11511.7913462675. The cubic root of 132521340 is about 509.8337789716.

Adding to 132521340 its reverse (43125231), we get a palindrome (175646571).

The spelling of 132521340 in words is "one hundred thirty-two million, five hundred twenty-one thousand, three hundred forty".