106503143 has 4 divisors (see below), whose sum is σ = 106777320. Its totient is φ = 106228968.

The previous prime is 106503127. The next prime is 106503149. The reversal of 106503143 is 341305601.

It is a happy number.

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 106503143 - 2⁴ = 106503127 is a prime.

It is a super-2 number, since 2×106503143² = 22685838937756898, 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 (106503149) 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, 136505 + ... + 137282.

It is an arithmetic number, because the mean of its divisors is an integer number (26694330).

Almost surely, 2^106503143 is an apocalyptic number.

106503143 is a deficient number, since it is larger than the sum of its proper divisors (274177).

106503143 is an equidigital number, since it uses as much as digits as its factorization.

106503143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274176.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 106503143 is about 10320.0359979992. The cubic root of 106503143 is about 474.0099682190.

Adding to 106503143 its reverse (341305601), we get a palindrome (447808744).

The spelling of 106503143 in words is "one hundred six million, five hundred three thousand, one hundred forty-three".