215064241 has 8 divisors (see below), whose sum is σ = 246317760. Its totient is φ = 183943248.

The previous prime is 215064233. The next prime is 215064247. The reversal of 215064241 is 142460512.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 215064241 - 2³ = 215064233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215064247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29626 + ... + 36163.

It is an arithmetic number, because the mean of its divisors is an integer number (30789720).

Almost surely, 2^215064241 is an apocalyptic number.

It is an amenable number.

215064241 is a deficient number, since it is larger than the sum of its proper divisors (31253519).

215064241 is an equidigital number, since it uses as much as digits as its factorization.

215064241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66263.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 215064241 is about 14665.0687349225. The cubic root of 215064241 is about 599.1323022541.

The spelling of 215064241 in words is "two hundred fifteen million, sixty-four thousand, two hundred forty-one".