65103140 has 12 divisors (see below), whose sum is σ = 136716636. Its totient is φ = 26041248.

The previous prime is 65103127. The next prime is 65103151. The reversal of 65103140 is 4130156.

It can be written as a sum of positive squares in 2 ways, for example, as 13147876 + 51955264 = 3626^2 + 7208^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3255157 = 65103140 / (6 + 5 + 1 + 0 + 3 + 1 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1627559 + ... + 1627598.

It is an arithmetic number, because the mean of its divisors is an integer number (11393053).

Almost surely, 2^65103140 is an apocalyptic number.

It is an amenable number.

65103140 is an abundant number, since it is smaller than the sum of its proper divisors (71613496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65103140 is a wasteful number, since it uses less digits than its factorization.

65103140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255166 (or 3255164 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 65103140 is about 8068.6516841415. The cubic root of 65103140 is about 402.2851289383.

Adding to 65103140 its reverse (4130156), we get a palindrome (69233296).

The spelling of 65103140 in words is "sixty-five million, one hundred three thousand, one hundred forty".