100143747 has 12 divisors (see below), whose sum is σ = 157802424. Its totient is φ = 60693120.

The previous prime is 100143731. The next prime is 100143751. The reversal of 100143747 is 747341001.

It is not a de Polignac number, because 100143747 - 2⁴ = 100143731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100143747.

It is not an unprimeable number, because it can be changed into a prime (100143727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 505678 + ... + 505875.

It is an arithmetic number, because the mean of its divisors is an integer number (13150202).

Almost surely, 2^100143747 is an apocalyptic number.

100143747 is a deficient number, since it is larger than the sum of its proper divisors (57658677).

100143747 is a wasteful number, since it uses less digits than its factorization.

100143747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011570 (or 1011567 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 100143747 is about 10007.1847689548. The cubic root of 100143747 is about 464.3811817029.

Adding to 100143747 its reverse (747341001), we get a palindrome (847484748).

The spelling of 100143747 in words is "one hundred million, one hundred forty-three thousand, seven hundred forty-seven".