123276365 has 4 divisors (see below), whose sum is σ = 147931644. Its totient is φ = 98621088.

The previous prime is 123276337. The next prime is 123276383. The reversal of 123276365 is 563672321.

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 63027721 + 60248644 = 7939^2 + 7762^2 .

It is a cyclic number.

It is not a de Polignac number, because 123276365 - 2⁶ = 123276301 is a prime.

It is a super-2 number, since 2×123276365² = 30394124335226450, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12327632 + ... + 12327641.

It is an arithmetic number, because the mean of its divisors is an integer number (36982911).

Almost surely, 2^123276365 is an apocalyptic number.

It is an amenable number.

123276365 is a deficient number, since it is larger than the sum of its proper divisors (24655279).

123276365 is an equidigital number, since it uses as much as digits as its factorization.

123276365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24655278.

The product of its digits is 45360, while the sum is 35.

The square root of 123276365 is about 11102.9890119733. The cubic root of 123276365 is about 497.6911750650.

The spelling of 123276365 in words is "one hundred twenty-three million, two hundred seventy-six thousand, three hundred sixty-five".