100143397 has 2 divisors, whose sum is σ = 100143398. Its totient is φ = 100143396.

The previous prime is 100143377. The next prime is 100143457. The reversal of 100143397 is 793341001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69739201 + 30404196 = 8351^2 + 5514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100143397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100143317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50071698 + 50071699.

It is an arithmetic number, because the mean of its divisors is an integer number (50071699).

Almost surely, 2^100143397 is an apocalyptic number.

It is an amenable number.

100143397 is a deficient number, since it is larger than the sum of its proper divisors (1).

100143397 is an equidigital number, since it uses as much as digits as its factorization.

100143397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 100143397 is about 10007.1672815038. The cubic root of 100143397 is about 464.3806407019.

Adding to 100143397 its reverse (793341001), we get a palindrome (893484398).

The spelling of 100143397 in words is "one hundred million, one hundred forty-three thousand, three hundred ninety-seven".