132430247 has 4 divisors (see below), whose sum is σ = 139400280. Its totient is φ = 125460216.

The previous prime is 132430219. The next prime is 132430267. The reversal of 132430247 is 742034231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132430247 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 (132430267) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3484988 + ... + 3485025.

It is an arithmetic number, because the mean of its divisors is an integer number (34850070).

Almost surely, 2^132430247 is an apocalyptic number.

132430247 is a deficient number, since it is larger than the sum of its proper divisors (6970033).

132430247 is an equidigital number, since it uses as much as digits as its factorization.

132430247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970032.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 132430247 is about 11507.8341576510. The cubic root of 132430247 is about 509.7169350638.

Adding to 132430247 its reverse (742034231), we get a palindrome (874464478).

The spelling of 132430247 in words is "one hundred thirty-two million, four hundred thirty thousand, two hundred forty-seven".