123264615 has 16 divisors (see below), whose sum is σ = 197683200. Its totient is φ = 65587872.

The previous prime is 123264611. The next prime is 123264643. The reversal of 123264615 is 516462321.

It is not a de Polignac number, because 123264615 - 2² = 123264611 is a prime.

It is a super-2 number, since 2×123264615² = 30388330622196450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123264611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2775 + ... + 15944.

It is an arithmetic number, because the mean of its divisors is an integer number (12355200).

Almost surely, 2^123264615 is an apocalyptic number.

123264615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123264615 is a deficient number, since it is larger than the sum of its proper divisors (74418585).

123264615 is a wasteful number, since it uses less digits than its factorization.

123264615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19166.

The product of its digits is 8640, while the sum is 30.

The square root of 123264615 is about 11102.4598625710. The cubic root of 123264615 is about 497.6753622011.

The spelling of 123264615 in words is "one hundred twenty-three million, two hundred sixty-four thousand, six hundred fifteen".