651049 has 8 divisors (see below), whose sum is σ = 787968. Its totient is φ = 525120.

The previous prime is 651043. The next prime is 651067. The reversal of 651049 is 940156.

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 651049 - 2⁵ = 651017 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 (651043) 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, 2617 + ... + 2854.

It is an arithmetic number, because the mean of its divisors is an integer number (98496).

2⁶⁵¹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

651049 is a deficient number, since it is larger than the sum of its proper divisors (136919).

651049 is a wasteful number, since it uses less digits than its factorization.

651049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 651049 is about 806.8760747475. The cubic root of 651049 is about 86.6704847102.

The spelling of 651049 in words is "six hundred fifty-one thousand, forty-nine".