143215 has 4 divisors (see below), whose sum is σ = 171864. Its totient is φ = 114568.

The previous prime is 143197. The next prime is 143239. The reversal of 143215 is 512341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512341 = 131 ⋅3911.

It is a cyclic number.

It is not a de Polignac number, because 143215 - 2¹⁷ = 12143 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14317 + ... + 14326.

It is an arithmetic number, because the mean of its divisors is an integer number (42966).

2¹⁴³²¹⁵ is an apocalyptic number.

143215 is a deficient number, since it is larger than the sum of its proper divisors (28649).

143215 is an equidigital number, since it uses as much as digits as its factorization.

143215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28648.

The product of its digits is 120, while the sum is 16.

The square root of 143215 is about 378.4375774154. The cubic root of 143215 is about 52.3194097497.

Adding to 143215 its reverse (512341), we get a palindrome (655556).

The spelling of 143215 in words is "one hundred forty-three thousand, two hundred fifteen".