651201 has 8 divisors (see below), whose sum is σ = 875424. Its totient is φ = 430560.

The previous prime is 651193. The next prime is 651221. The reversal of 651201 is 102156.

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

It is not a de Polignac number, because 651201 - 2³ = 651193 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 651201.

It is not an unprimeable number, because it can be changed into a prime (651221) 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, 436 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (109428).

2⁶⁵¹²⁰¹ is an apocalyptic number.

It is an amenable number.

651201 is a deficient number, since it is larger than the sum of its proper divisors (224223).

651201 is a wasteful number, since it uses less digits than its factorization.

651201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 651201 is about 806.9702596750. The cubic root of 651201 is about 86.6772291531.

Adding to 651201 its reverse (102156), we get a palindrome (753357).

The spelling of 651201 in words is "six hundred fifty-one thousand, two hundred one".