70215 has 16 divisors (see below), whose sum is σ = 116736. Its totient is φ = 36000.

The previous prime is 70207. The next prime is 70223. The reversal of 70215 is 51207.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70207) and next prime (70223).

It is not a de Polignac number, because 70215 - 2³ = 70207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

70215 is a lucky number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 70194 and 70203.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70215.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390 + ... + 540.

It is an arithmetic number, because the mean of its divisors is an integer number (7296).

2⁷⁰²¹⁵ is an apocalyptic number.

70215 is a deficient number, since it is larger than the sum of its proper divisors (46521).

70215 is a wasteful number, since it uses less digits than its factorization.

70215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 70215 is about 264.9811314037. The cubic root of 70215 is about 41.2550039843.

It can be divided in two parts, 702 and 15, that added together give a palindrome (717).

The spelling of 70215 in words is "seventy thousand, two hundred fifteen".