100432345 has 32 divisors (see below), whose sum is σ = 138989088. Its totient is φ = 69009408.

The previous prime is 100432333. The next prime is 100432357. The reversal of 100432345 is 543234001.

It is an interprime number because it is at equal distance from previous prime (100432333) and next prime (100432357).

It can be written as a sum of positive squares in 16 ways, for example, as 53056656 + 47375689 = 7284^2 + 6883^2 .

It is not a de Polignac number, because 100432345 - 2⁷ = 100432217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106717 + ... + 107653.

It is an arithmetic number, because the mean of its divisors is an integer number (4343409).

Almost surely, 2^100432345 is an apocalyptic number.

It is an amenable number.

100432345 is a deficient number, since it is larger than the sum of its proper divisors (38556743).

100432345 is a wasteful number, since it uses less digits than its factorization.

100432345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 100432345 is about 10021.5939350983. The cubic root of 100432345 is about 464.8268442271.

Adding to 100432345 its reverse (543234001), we get a palindrome (643666346).

The spelling of 100432345 in words is "one hundred million, four hundred thirty-two thousand, three hundred forty-five".