651260 has 12 divisors (see below), whose sum is σ = 1367688. Its totient is φ = 260496.

The previous prime is 651257. The next prime is 651271. The reversal of 651260 is 62156.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 32563 = 651260 / (6 + 5 + 1 + 2 + 6 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16262 + ... + 16301.

It is an arithmetic number, because the mean of its divisors is an integer number (113974).

2⁶⁵¹²⁶⁰ is an apocalyptic number.

It is an amenable number.

651260 is an abundant number, since it is smaller than the sum of its proper divisors (716428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

651260 is a wasteful number, since it uses less digits than its factorization.

651260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32572 (or 32570 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 651260 is about 807.0068153368. The cubic root of 651260 is about 86.6798467792.

The spelling of 651260 in words is "six hundred fifty-one thousand, two hundred sixty".