216341545 has 8 divisors (see below), whose sum is σ = 296697024. Its totient is φ = 148348464.

The previous prime is 216341533. The next prime is 216341561. The reversal of 216341545 is 545143612.

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 216341545 - 2⁵ = 216341513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3090559 + ... + 3090628.

It is an arithmetic number, because the mean of its divisors is an integer number (37087128).

Almost surely, 2^216341545 is an apocalyptic number.

It is an amenable number.

216341545 is a deficient number, since it is larger than the sum of its proper divisors (80355479).

216341545 is an equidigital number, since it uses as much as digits as its factorization.

216341545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181199.

The product of its digits is 14400, while the sum is 31.

The square root of 216341545 is about 14708.5534638862. The cubic root of 216341545 is about 600.3160788314.

The spelling of 216341545 in words is "two hundred sixteen million, three hundred forty-one thousand, five hundred forty-five".