65630147 has 4 divisors (see below), whose sum is σ = 71596536. Its totient is φ = 59663760.

The previous prime is 65630143. The next prime is 65630209. The reversal of 65630147 is 74103656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65630147 - 2² = 65630143 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (65630143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2983178 + ... + 2983199.

It is an arithmetic number, because the mean of its divisors is an integer number (17899134).

Almost surely, 2^65630147 is an apocalyptic number.

65630147 is a deficient number, since it is larger than the sum of its proper divisors (5966389).

65630147 is a wasteful number, since it uses less digits than its factorization.

65630147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5966388.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 65630147 is about 8101.2435465180. The cubic root of 65630147 is about 403.3677063952.

It can be divided in two parts, 656 and 30147, that added together give a palindrome (30803).

The spelling of 65630147 in words is "sixty-five million, six hundred thirty thousand, one hundred forty-seven".