103540215 has 24 divisors (see below), whose sum is σ = 174851568. Its totient is φ = 52312320.

The previous prime is 103540193. The next prime is 103540219. The reversal of 103540215 is 512045301.

It is not a de Polignac number, because 103540215 - 2¹⁵ = 103507447 is a prime.

It is a super-3 number, since 3×103540215³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 103540191 and 103540200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103540219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4146 + ... + 14975.

It is an arithmetic number, because the mean of its divisors is an integer number (7285482).

Almost surely, 2^103540215 is an apocalyptic number.

103540215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

103540215 is a deficient number, since it is larger than the sum of its proper divisors (71311353).

103540215 is a wasteful number, since it uses less digits than its factorization.

103540215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19167 (or 19148 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 103540215 is about 10175.4712421588. The cubic root of 103540215 is about 469.5728955307.

Adding to 103540215 its reverse (512045301), we get a palindrome (615585516).

The spelling of 103540215 in words is "one hundred three million, five hundred forty thousand, two hundred fifteen".