65204130 has 32 divisors (see below), whose sum is σ = 156936384. Its totient is φ = 17338176.

The previous prime is 65204107. The next prime is 65204131. The reversal of 65204130 is 3140256.

65204130 = 218² + 219² + ... + 590².

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 65204097 and 65204106.

It is not an unprimeable number, because it can be changed into a prime (65204131) 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, 8277 + ... + 14103.

It is an arithmetic number, because the mean of its divisors is an integer number (4904262).

Almost surely, 2^65204130 is an apocalyptic number.

65204130 is an abundant number, since it is smaller than the sum of its proper divisors (91732254).

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

65204130 is a wasteful number, since it uses less digits than its factorization.

65204130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210.

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

The square root of 65204130 is about 8074.9074298100. The cubic root of 65204130 is about 402.4930338416.

Adding to 65204130 its reverse (3140256), we get a palindrome (68344386).

The spelling of 65204130 in words is "sixty-five million, two hundred four thousand, one hundred thirty".