123414505 has 4 divisors (see below), whose sum is σ = 148097412. Its totient is φ = 98731600.

The previous prime is 123414493. The next prime is 123414539. The reversal of 123414505 is 505414321.

It is a happy number.

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 43705321 + 79709184 = 6611^2 + 8928^2 .

It is not a de Polignac number, because 123414505 - 2⁹ = 123413993 is a prime.

It is a super-2 number, since 2×123414505² = 30462280088790050, 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 self number, because there is not a number n which added to its sum of digits gives 123414505.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12341446 + ... + 12341455.

It is an arithmetic number, because the mean of its divisors is an integer number (37024353).

Almost surely, 2^123414505 is an apocalyptic number.

It is an amenable number.

123414505 is a deficient number, since it is larger than the sum of its proper divisors (24682907).

123414505 is an equidigital number, since it uses as much as digits as its factorization.

123414505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24682906.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 123414505 is about 11109.2081175933. The cubic root of 123414505 is about 497.8770052110.

Adding to 123414505 its reverse (505414321), we get a palindrome (628828826).

The spelling of 123414505 in words is "one hundred twenty-three million, four hundred fourteen thousand, five hundred five".