123361418 has 16 divisors (see below), whose sum is σ = 202684680. Its totient is φ = 56050176.

The previous prime is 123361373. The next prime is 123361429. The reversal of 123361418 is 814163321.

It can be written as a sum of positive squares in 4 ways, for example, as 89056969 + 34304449 = 9437^2 + 5857^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

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 7 ways as a sum of consecutive naturals, for example, 61571 + ... + 63542.

Almost surely, 2^123361418 is an apocalyptic number.

123361418 is a deficient number, since it is larger than the sum of its proper divisors (79323262).

123361418 is a wasteful number, since it uses less digits than its factorization.

123361418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125161.

The product of its digits is 3456, while the sum is 29.

The square root of 123361418 is about 11106.8185363767. The cubic root of 123361418 is about 497.8056073710.

The spelling of 123361418 in words is "one hundred twenty-three million, three hundred sixty-one thousand, four hundred eighteen".