100143045 has 12 divisors (see below), whose sum is σ = 173581356. Its totient is φ = 53409600.

The previous prime is 100143031. The next prime is 100143059. The reversal of 100143045 is 540341001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100143031) and next prime (100143059).

It can be written as a sum of positive squares in 2 ways, for example, as 39162564 + 60980481 = 6258^2 + 7809^2 .

It is not a de Polignac number, because 100143045 - 2⁶ = 100142981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1112656 + ... + 1112745.

It is an arithmetic number, because the mean of its divisors is an integer number (14465113).

Almost surely, 2^100143045 is an apocalyptic number.

100143045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100143045 is a deficient number, since it is larger than the sum of its proper divisors (73438311).

100143045 is a wasteful number, since it uses less digits than its factorization.

100143045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225412 (or 2225409 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 100143045 is about 10007.1496940937. The cubic root of 100143045 is about 464.3800966082.

Adding to 100143045 its reverse (540341001), we get a palindrome (640484046).

The spelling of 100143045 in words is "one hundred million, one hundred forty-three thousand, forty-five".