105532215 has 24 divisors (see below), whose sum is σ = 174497904. Its totient is φ = 54460800.

The previous prime is 105532201. The next prime is 105532223. The reversal of 105532215 is 512235501.

It is a happy number.

It is not a de Polignac number, because 105532215 - 2⁵ = 105532183 is a prime.

It is a super-2 number, since 2×105532215² = 22274096805612450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10755 + ... + 18075.

It is an arithmetic number, because the mean of its divisors is an integer number (7270746).

Almost surely, 2^105532215 is an apocalyptic number.

105532215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105532215 is a deficient number, since it is larger than the sum of its proper divisors (68965689).

105532215 is an equidigital number, since it uses as much as digits as its factorization.

105532215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7391 (or 7360 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 105532215 is about 10272.8873740541. The cubic root of 105532215 is about 472.5651431697.

Adding to 105532215 its reverse (512235501), we get a palindrome (617767716).

The spelling of 105532215 in words is "one hundred five million, five hundred thirty-two thousand, two hundred fifteen".