220715 has 8 divisors (see below), whose sum is σ = 289008. Its totient is φ = 160480.

The previous prime is 220709. The next prime is 220721. The reversal of 220715 is 517022.

It is an interprime number because it is at equal distance from previous prime (220709) and next prime (220721).

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

It is not a de Polignac number, because 220715 - 2⁴ = 220699 is a prime.

It is a super-2 number, since 2×220715² = 97430222450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220693 and 220702.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1952 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (36126).

2²²⁰⁷¹⁵ is an apocalyptic number.

220715 is a deficient number, since it is larger than the sum of its proper divisors (68293).

220715 is a wasteful number, since it uses less digits than its factorization.

220715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 220715 is about 469.8031502662. The cubic root of 220715 is about 60.4334354299.

Adding to 220715 its reverse (517022), we get a palindrome (737737).

It can be divided in two parts, 2207 and 15, that added together give a palindrome (2222).

The spelling of 220715 in words is "two hundred twenty thousand, seven hundred fifteen".