103445143 has 4 divisors (see below), whose sum is σ = 105850888. Its totient is φ = 101039400.

The previous prime is 103445123. The next prime is 103445201. The reversal of 103445143 is 341544301.

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

It is a cyclic number.

It is not a de Polignac number, because 103445143 - 2¹³ = 103436951 is a prime.

It is a super-2 number, since 2×103445143² = 21401795220580898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103445123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202808 + ... + 1202893.

It is an arithmetic number, because the mean of its divisors is an integer number (26462722).

Almost surely, 2^103445143 is an apocalyptic number.

103445143 is a deficient number, since it is larger than the sum of its proper divisors (2405745).

103445143 is an equidigital number, since it uses as much as digits as its factorization.

103445143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405744.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 103445143 is about 10170.7985428874. The cubic root of 103445143 is about 469.4291288300.

Adding to 103445143 its reverse (341544301), we get a palindrome (444989444).

The spelling of 103445143 in words is "one hundred three million, four hundred forty-five thousand, one hundred forty-three".