147215 has 4 divisors (see below), whose sum is σ = 176664. Its totient is φ = 117768.

The previous prime is 147211. The next prime is 147221. The reversal of 147215 is 512741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 147215 - 2² = 147211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14717 + ... + 14726.

It is an arithmetic number, because the mean of its divisors is an integer number (44166).

2¹⁴⁷²¹⁵ is an apocalyptic number.

147215 is a deficient number, since it is larger than the sum of its proper divisors (29449).

147215 is an equidigital number, since it uses as much as digits as its factorization.

147215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29448.

The product of its digits is 280, while the sum is 20.

The square root of 147215 is about 383.6860695934. The cubic root of 147215 is about 52.8020382975.

Adding to 147215 its reverse (512741), we get a palindrome (659956).

The spelling of 147215 in words is "one hundred forty-seven thousand, two hundred fifteen".