651253 has 8 divisors (see below), whose sum is σ = 713880. Its totient is φ = 591360.

The previous prime is 651251. The next prime is 651257. The reversal of 651253 is 352156.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 339889 + 311364 = 583^2 + 558^2 .

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 651253 - 2¹ = 651251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651251) 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, 168 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (89235).

2⁶⁵¹²⁵³ is an apocalyptic number.

It is an amenable number.

651253 is a deficient number, since it is larger than the sum of its proper divisors (62627).

651253 is a wasteful number, since it uses less digits than its factorization.

651253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367.

The product of its digits is 900, while the sum is 22.

The square root of 651253 is about 807.0024783109. The cubic root of 651253 is about 86.6795362216.

The spelling of 651253 in words is "six hundred fifty-one thousand, two hundred fifty-three".