65145603 has 8 divisors (see below), whose sum is σ = 86936400. Its totient is φ = 43392608.

The previous prime is 65145599. The next prime is 65145607. The reversal of 65145603 is 30654156.

It is an interprime number because it is at equal distance from previous prime (65145599) and next prime (65145607).

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 65145603 - 2² = 65145599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65145607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5148 + ... + 12521.

It is an arithmetic number, because the mean of its divisors is an integer number (10867050).

Almost surely, 2^65145603 is an apocalyptic number.

65145603 is a deficient number, since it is larger than the sum of its proper divisors (21790797).

65145603 is a wasteful number, since it uses less digits than its factorization.

65145603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18901.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 65145603 is about 8071.2826118282. The cubic root of 65145603 is about 402.3725723440.

Adding to 65145603 its reverse (30654156), we get a palindrome (95799759).

The spelling of 65145603 in words is "sixty-five million, one hundred forty-five thousand, six hundred three".