103450143 has 4 divisors (see below), whose sum is σ = 137933528. Its totient is φ = 68966760.

The previous prime is 103450141. The next prime is 103450147. The reversal of 103450143 is 341054301.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 103450143 - 2¹ = 103450141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103450141) 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, 17241688 + ... + 17241693.

It is an arithmetic number, because the mean of its divisors is an integer number (34483382).

Almost surely, 2^103450143 is an apocalyptic number.

103450143 is a deficient number, since it is larger than the sum of its proper divisors (34483385).

103450143 is an equidigital number, since it uses as much as digits as its factorization.

103450143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34483384.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 103450143 is about 10171.0443416593. The cubic root of 103450143 is about 469.4366919621.

The spelling of 103450143 in words is "one hundred three million, four hundred fifty thousand, one hundred forty-three".