651097 has 2 divisors, whose sum is σ = 651098. Its totient is φ = 651096.

The previous prime is 651071. The next prime is 651103. The reversal of 651097 is 790156.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 546121 + 104976 = 739^2 + 324^2 .

It is a cyclic number.

It is not a de Polignac number, because 651097 - 2¹⁵ = 618329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (651017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325548 + 325549.

It is an arithmetic number, because the mean of its divisors is an integer number (325549).

2⁶⁵¹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

651097 is a deficient number, since it is larger than the sum of its proper divisors (1).

651097 is an equidigital number, since it uses as much as digits as its factorization.

651097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 651097 is about 806.9058185439. The cubic root of 651097 is about 86.6726146477.

The spelling of 651097 in words is "six hundred fifty-one thousand, ninety-seven".