123701573 has 4 divisors (see below), whose sum is σ = 123857580. Its totient is φ = 123545568.

The previous prime is 123701569. The next prime is 123701581. The reversal of 123701573 is 375107321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19518724 + 104182849 = 4418^2 + 10207^2 .

It is a cyclic number.

It is not a de Polignac number, because 123701573 - 2² = 123701569 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 (123701173) 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, 76808 + ... + 78401.

It is an arithmetic number, because the mean of its divisors is an integer number (30964395).

Almost surely, 2^123701573 is an apocalyptic number.

It is an amenable number.

123701573 is a deficient number, since it is larger than the sum of its proper divisors (156007).

123701573 is an equidigital number, since it uses as much as digits as its factorization.

123701573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156006.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 123701573 is about 11122.1208858742. The cubic root of 123701573 is about 498.2627348103.

Adding to 123701573 its reverse (375107321), we get a palindrome (498808894).

The spelling of 123701573 in words is "one hundred twenty-three million, seven hundred one thousand, five hundred seventy-three".