418138145 has 4 divisors (see below), whose sum is σ = 501765780. Its totient is φ = 334510512.

The previous prime is 418138129. The next prime is 418138151. The reversal of 418138145 is 541831814.

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 217179169 + 200958976 = 14737^2 + 14176^2 .

It is a cyclic number.

It is not a de Polignac number, because 418138145 - 2⁴ = 418138129 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41813810 + ... + 41813819.

It is an arithmetic number, because the mean of its divisors is an integer number (125441445).

Almost surely, 2^418138145 is an apocalyptic number.

It is an amenable number.

418138145 is a deficient number, since it is larger than the sum of its proper divisors (83627635).

418138145 is an equidigital number, since it uses as much as digits as its factorization.

418138145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83627634.

The product of its digits is 15360, while the sum is 35.

The square root of 418138145 is about 20448.4264675794. The cubic root of 418138145 is about 747.7789967593.

Adding to 418138145 its reverse (541831814), we get a palindrome (959969959).

The spelling of 418138145 in words is "four hundred eighteen million, one hundred thirty-eight thousand, one hundred forty-five".