1250609 has 2 divisors, whose sum is σ = 1250610. Its totient is φ = 1250608.

The previous prime is 1250593. The next prime is 1250611. The reversal of 1250609 is 9060521.

1250609 is nontrivially palindromic in base 4.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221025 + 29584 = 1105^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250609 - 2⁴ = 1250593 is a prime.

Together with 1250611, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₉₆₅₁₂ and since 1250609 and 96512 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1250629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625304 + 625305.

It is an arithmetic number, because the mean of its divisors is an integer number (625305).

2^1250609 is an apocalyptic number.

It is an amenable number.

1250609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250609 is an equidigital number, since it uses as much as digits as its factorization.

1250609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1250609 is about 1118.3063086650. The cubic root of 1250609 is about 107.7392256710.

The spelling of 1250609 in words is "one million, two hundred fifty thousand, six hundred nine".