123545343 has 4 divisors (see below), whose sum is σ = 164727128. Its totient is φ = 82363560.

The previous prime is 123545339. The next prime is 123545363. The reversal of 123545343 is 343545321.

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

It is not a de Polignac number, because 123545343 - 2² = 123545339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123545343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123545333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20590888 + ... + 20590893.

It is an arithmetic number, because the mean of its divisors is an integer number (41181782).

Almost surely, 2^123545343 is an apocalyptic number.

123545343 is a deficient number, since it is larger than the sum of its proper divisors (41181785).

123545343 is an equidigital number, since it uses as much as digits as its factorization.

123545343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41181784.

The product of its digits is 21600, while the sum is 30.

The square root of 123545343 is about 11115.0952762448. The cubic root of 123545343 is about 498.0528846597.

The spelling of 123545343 in words is "one hundred twenty-three million, five hundred forty-five thousand, three hundred forty-three".