100143389 has 4 divisors (see below), whose sum is σ = 100271424. Its totient is φ = 100015356.

The previous prime is 100143377. The next prime is 100143397. The reversal of 100143389 is 983341001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 983341001 = 9391 ⋅104711.

It is a cyclic number.

It is not a de Polignac number, because 100143389 - 2²⁰ = 99094813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100143289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62837 + ... + 64410.

It is an arithmetic number, because the mean of its divisors is an integer number (25067856).

Almost surely, 2^100143389 is an apocalyptic number.

It is an amenable number.

100143389 is a deficient number, since it is larger than the sum of its proper divisors (128035).

100143389 is an equidigital number, since it uses as much as digits as its factorization.

100143389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128034.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 100143389 is about 10007.1668817903. The cubic root of 100143389 is about 464.3806283361.

The spelling of 100143389 in words is "one hundred million, one hundred forty-three thousand, three hundred eighty-nine".