132688637 has 4 divisors (see below), whose sum is σ = 134368320. Its totient is φ = 131008956.

The previous prime is 132688631. The next prime is 132688639. The reversal of 132688637 is 736886231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 736886231 = 1619 ⋅455149.

It is a cyclic number.

It is not a de Polignac number, because 132688637 - 2¹⁰ = 132687613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132688631) 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, 839723 + ... + 839880.

It is an arithmetic number, because the mean of its divisors is an integer number (33592080).

Almost surely, 2^132688637 is an apocalyptic number.

It is an amenable number.

132688637 is a deficient number, since it is larger than the sum of its proper divisors (1679683).

132688637 is an equidigital number, since it uses as much as digits as its factorization.

132688637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679682.

The product of its digits is 290304, while the sum is 44.

The square root of 132688637 is about 11519.0553866192. The cubic root of 132688637 is about 510.0482294515.

The spelling of 132688637 in words is "one hundred thirty-two million, six hundred eighty-eight thousand, six hundred thirty-seven".