146215186 has 16 divisors (see below), whose sum is σ = 246464064. Its totient is φ = 64549584.

The previous prime is 146215159. The next prime is 146215211. The reversal of 146215186 is 681512641.

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 7 ways as a sum of consecutive naturals, for example, 121656 + ... + 122851.

It is an arithmetic number, because the mean of its divisors is an integer number (15404004).

Almost surely, 2^146215186 is an apocalyptic number.

146215186 is a deficient number, since it is larger than the sum of its proper divisors (100248878).

146215186 is a wasteful number, since it uses less digits than its factorization.

146215186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244545.

The product of its digits is 11520, while the sum is 34.

The square root of 146215186 is about 12091.9471550284. The cubic root of 146215186 is about 526.8223125048.

The spelling of 146215186 in words is "one hundred forty-six million, two hundred fifteen thousand, one hundred eighty-six".