65430215 has 8 divisors (see below), whose sum is σ = 78809760. Its totient is φ = 52148512.

The previous prime is 65430203. The next prime is 65430217. The reversal of 65430215 is 51203456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65430215 - 2⁴ = 65430199 is a prime.

It is a super-2 number, since 2×65430215² = 8562226069892450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65430217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22979 + ... + 25668.

It is an arithmetic number, because the mean of its divisors is an integer number (9851220).

Almost surely, 2^65430215 is an apocalyptic number.

65430215 is a deficient number, since it is larger than the sum of its proper divisors (13379545).

65430215 is a wasteful number, since it uses less digits than its factorization.

65430215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48921.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 65430215 is about 8088.8945474644. The cubic root of 65430215 is about 402.9576908420.

The spelling of 65430215 in words is "sixty-five million, four hundred thirty thousand, two hundred fifteen".