106556018 has 4 divisors (see below), whose sum is σ = 159834030. Its totient is φ = 53278008.

The previous prime is 106555993. The next prime is 106556027. The reversal of 106556018 is 810655601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810655601 = 7 ⋅115807943.

It can be written as a sum of positive squares in only one way, i.e., 105001009 + 1555009 = 10247^2 + 1247^2 .

It is a super-2 number, since 2×106556018² = 22708369944032648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26639003 + ... + 26639006.

Almost surely, 2^106556018 is an apocalyptic number.

106556018 is a deficient number, since it is larger than the sum of its proper divisors (53278012).

106556018 is an equidigital number, since it uses as much as digits as its factorization.

106556018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53278011.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 106556018 is about 10322.5974444420. The cubic root of 106556018 is about 474.0883982378.

The spelling of 106556018 in words is "one hundred six million, five hundred fifty-six thousand, eighteen".