141818218 has 4 divisors (see below), whose sum is σ = 212727330. Its totient is φ = 70909108.

The previous prime is 141818191. The next prime is 141818219. The reversal of 141818218 is 812818141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 812818141 = 47 ⋅17294003.

It can be written as a sum of positive squares in only one way, i.e., 116143729 + 25674489 = 10777^2 + 5067^2 .

It is a super-2 number, since 2×141818218² = 40224813913391048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (141818219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35454553 + ... + 35454556.

Almost surely, 2^141818218 is an apocalyptic number.

141818218 is a deficient number, since it is larger than the sum of its proper divisors (70909112).

141818218 is an equidigital number, since it uses as much as digits as its factorization.

141818218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70909111.

The product of its digits is 4096, while the sum is 34.

The square root of 141818218 is about 11908.7454419011. The cubic root of 141818218 is about 521.4876262060.

The spelling of 141818218 in words is "one hundred forty-one million, eight hundred eighteen thousand, two hundred eighteen".