132643815 has 16 divisors (see below), whose sum is σ = 217407456. Its totient is φ = 69017600.

The previous prime is 132643813. The next prime is 132643867. The reversal of 132643815 is 518346231.

It is not a de Polignac number, because 132643815 - 2¹ = 132643813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132643813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107226 + ... + 108455.

It is an arithmetic number, because the mean of its divisors is an integer number (13587966).

Almost surely, 2^132643815 is an apocalyptic number.

132643815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

132643815 is a deficient number, since it is larger than the sum of its proper divisors (84763641).

132643815 is a wasteful number, since it uses less digits than its factorization.

132643815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215730.

The product of its digits is 17280, while the sum is 33.

The square root of 132643815 is about 11517.1096634529. The cubic root of 132643815 is about 509.9907918368.

The spelling of 132643815 in words is "one hundred thirty-two million, six hundred forty-three thousand, eight hundred fifteen".