65161201 has 4 divisors (see below), whose sum is σ = 74469952. Its totient is φ = 55852452.

The previous prime is 65161189. The next prime is 65161247. The reversal of 65161201 is 10216156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65161201 - 2⁵ = 65161169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65161301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4654365 + ... + 4654378.

It is an arithmetic number, because the mean of its divisors is an integer number (18617488).

Almost surely, 2^65161201 is an apocalyptic number.

It is an amenable number.

65161201 is a deficient number, since it is larger than the sum of its proper divisors (9308751).

65161201 is an equidigital number, since it uses as much as digits as its factorization.

65161201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9308750.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 65161201 is about 8072.2488192572. The cubic root of 65161201 is about 402.4046835239.

Adding to 65161201 its reverse (10216156), we get a palindrome (75377357).

The spelling of 65161201 in words is "sixty-five million, one hundred sixty-one thousand, two hundred one".