65240130 has 32 divisors (see below), whose sum is σ = 157464000. Its totient is φ = 17298752.

The previous prime is 65240113. The next prime is 65240137. The reversal of 65240130 is 3104256.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65240097 and 65240106.

It is not an unprimeable number, because it can be changed into a prime (65240137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705 + ... + 11444.

It is an arithmetic number, because the mean of its divisors is an integer number (4920750).

Almost surely, 2^65240130 is an apocalyptic number.

65240130 is an abundant number, since it is smaller than the sum of its proper divisors (92223870).

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

65240130 is a wasteful number, since it uses less digits than its factorization.

65240130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12338.

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

The square root of 65240130 is about 8077.1362499341. The cubic root of 65240130 is about 402.5670939938.

Adding to 65240130 its reverse (3104256), we get a palindrome (68344386).

The spelling of 65240130 in words is "sixty-five million, two hundred forty thousand, one hundred thirty".