123415328 has 12 divisors (see below), whose sum is σ = 242973990. Its totient is φ = 61707648.

The previous prime is 123415249. The next prime is 123415337. The reversal of 123415328 is 823514321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69422224 + 53993104 = 8332^2 + 7348^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123415328.

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 as a sum of consecutive naturals, namely, 1928333 + ... + 1928396.

Almost surely, 2^123415328 is an apocalyptic number.

It is an amenable number.

123415328 is a deficient number, since it is larger than the sum of its proper divisors (119558662).

123415328 is an equidigital number, since it uses as much as digits as its factorization.

123415328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856739 (or 3856731 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 123415328 is about 11109.2451588756. The cubic root of 123415328 is about 497.8781119201.

Adding to 123415328 its reverse (823514321), we get a palindrome (946929649).

The spelling of 123415328 in words is "one hundred twenty-three million, four hundred fifteen thousand, three hundred twenty-eight".