10451218 has 4 divisors (see below), whose sum is σ = 15676830. Its totient is φ = 5225608.

The previous prime is 10451213. The next prime is 10451219. The reversal of 10451218 is 81215401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81215401 = 643 ⋅126307.

It can be written as a sum of positive squares in only one way, i.e., 8779369 + 1671849 = 2963^2 + 1293^2 .

It is not an unprimeable number, because it can be changed into a prime (10451213) by changing a digit.

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, 2612803 + ... + 2612806.

Almost surely, 2^10451218 is an apocalyptic number.

10451218 is a deficient number, since it is larger than the sum of its proper divisors (5225612).

10451218 is an equidigital number, since it uses as much as digits as its factorization.

10451218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225611.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 10451218 is about 3232.8343601243. The cubic root of 10451218 is about 218.6363166574.

Adding to 10451218 its reverse (81215401), we get a palindrome (91666619).

It can be divided in two parts, 1045 and 1218, that multiplied together give a triangular number (1272810 = T₁₅₉₅).

The spelling of 10451218 in words is "ten million, four hundred fifty-one thousand, two hundred eighteen".