103400143 has 12 divisors (see below), whose sum is σ = 131217192. Its totient is φ = 80571120.

The previous prime is 103400123. The next prime is 103400149. The reversal of 103400143 is 341004301.

It is a de Polignac number, because none of the positive numbers 2^k-103400143 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 (103400149) 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, 95380 + ... + 96457.

It is an arithmetic number, because the mean of its divisors is an integer number (10934766).

Almost surely, 2^103400143 is an apocalyptic number.

103400143 is a deficient number, since it is larger than the sum of its proper divisors (27817049).

103400143 is a wasteful number, since it uses less digits than its factorization.

103400143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191862 (or 191855 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 103400143 is about 10168.5860865707. The cubic root of 103400143 is about 469.3610496722.

Adding to 103400143 its reverse (341004301), we get a palindrome (444404444).

The spelling of 103400143 in words is "one hundred three million, four hundred thousand, one hundred forty-three".