103405418 has 4 divisors (see below), whose sum is σ = 155108130. Its totient is φ = 51702708.

The previous prime is 103405409. The next prime is 103405453. The reversal of 103405418 is 814504301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75916369 + 27489049 = 8713^2 + 5243^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25851353 + ... + 25851356.

Almost surely, 2^103405418 is an apocalyptic number.

103405418 is a deficient number, since it is larger than the sum of its proper divisors (51702712).

103405418 is an equidigital number, since it uses as much as digits as its factorization.

103405418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51702711.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 103405418 is about 10168.8454605230. The cubic root of 103405418 is about 469.3690310842.

Adding to 103405418 its reverse (814504301), we get a palindrome (917909719).

It can be divided in two parts, 103405 and 418, that added together give a cube (103823 = 47³).

The spelling of 103405418 in words is "one hundred three million, four hundred five thousand, four hundred eighteen".