123285545 has 8 divisors (see below), whose sum is σ = 149468424. Its totient is φ = 97611264.

The previous prime is 123285527. The next prime is 123285557. The reversal of 123285545 is 545582321.

It can be written as a sum of positive squares in 4 ways, for example, as 984064 + 122301481 = 992^2 + 11059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123285545 - 2¹⁸ = 123023401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126614 + ... + 127583.

It is an arithmetic number, because the mean of its divisors is an integer number (18683553).

Almost surely, 2^123285545 is an apocalyptic number.

It is an amenable number.

123285545 is a deficient number, since it is larger than the sum of its proper divisors (26182879).

123285545 is an equidigital number, since it uses as much as digits as its factorization.

123285545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254299.

The product of its digits is 48000, while the sum is 35.

The square root of 123285545 is about 11103.4024064698. The cubic root of 123285545 is about 497.7035285862.

The spelling of 123285545 in words is "one hundred twenty-three million, two hundred eighty-five thousand, five hundred forty-five".