100432547 has 4 divisors (see below), whose sum is σ = 100472280. Its totient is φ = 100392816.

The previous prime is 100432523. The next prime is 100432681. The reversal of 100432547 is 745234001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745234001 = 4643 ⋅160507.

It is a cyclic number.

It is not a de Polignac number, because 100432547 - 2¹⁸ = 100170403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100432847) 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, 15797 + ... + 21222.

It is an arithmetic number, because the mean of its divisors is an integer number (25118070).

Almost surely, 2^100432547 is an apocalyptic number.

100432547 is a deficient number, since it is larger than the sum of its proper divisors (39733).

100432547 is an equidigital number, since it uses as much as digits as its factorization.

100432547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39732.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 100432547 is about 10021.6040133304. The cubic root of 100432547 is about 464.8271558630.

Adding to 100432547 its reverse (745234001), we get a palindrome (845666548).

The spelling of 100432547 in words is "one hundred million, four hundred thirty-two thousand, five hundred forty-seven".