100231045 has 8 divisors (see below), whose sum is σ = 120437496. Its totient is φ = 80078016.

The previous prime is 100231009. The next prime is 100231063. The reversal of 100231045 is 540132001.

It can be written as a sum of positive squares in 4 ways, for example, as 850084 + 99380961 = 922^2 + 9969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100231045 - 2⁷ = 100230917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9102 + ... + 16831.

It is an arithmetic number, because the mean of its divisors is an integer number (15054687).

Almost surely, 2^100231045 is an apocalyptic number.

It is an amenable number.

100231045 is a deficient number, since it is larger than the sum of its proper divisors (20206451).

100231045 is an equidigital number, since it uses as much as digits as its factorization.

100231045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26711.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 100231045 is about 10011.5455849734. The cubic root of 100231045 is about 464.5160803711.

Adding to 100231045 its reverse (540132001), we get a palindrome (640363046).

The spelling of 100231045 in words is "one hundred million, two hundred thirty-one thousand, forty-five".