103240065 has 32 divisors (see below), whose sum is σ = 175706496. Its totient is φ = 51584000.

The previous prime is 103240063. The next prime is 103240097. The reversal of 103240065 is 560042301.

It is a happy number.

It is not a de Polignac number, because 103240065 - 2¹ = 103240063 is a prime.

It is a super-2 number, since 2×103240065² = 21317022042408450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103240061) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 63199 + ... + 64811.

It is an arithmetic number, because the mean of its divisors is an integer number (5490828).

Almost surely, 2^103240065 is an apocalyptic number.

103240065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103240065 is a deficient number, since it is larger than the sum of its proper divisors (72466431).

103240065 is a wasteful number, since it uses less digits than its factorization.

103240065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 103240065 is about 10160.7118352997. The cubic root of 103240065 is about 469.1187122112.

Adding to 103240065 its reverse (560042301), we get a palindrome (663282366).

The spelling of 103240065 in words is "one hundred three million, two hundred forty thousand, sixty-five".