215265146 has 8 divisors (see below), whose sum is σ = 322989120. Its totient is φ = 107602108.

The previous prime is 215265137. The next prime is 215265179. The reversal of 215265146 is 641562512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5036 + ... + 21351.

It is an arithmetic number, because the mean of its divisors is an integer number (40373640).

Almost surely, 2^215265146 is an apocalyptic number.

215265146 is a deficient number, since it is larger than the sum of its proper divisors (107723974).

215265146 is a wasteful number, since it uses less digits than its factorization.

215265146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30468.

The product of its digits is 14400, while the sum is 32.

The square root of 215265146 is about 14671.9169163406. The cubic root of 215265146 is about 599.3188065481.

The spelling of 215265146 in words is "two hundred fifteen million, two hundred sixty-five thousand, one hundred forty-six".