1253089 has 2 divisors, whose sum is σ = 1253090. Its totient is φ = 1253088.

The previous prime is 1253071. The next prime is 1253093. The reversal of 1253089 is 9803521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640000 + 613089 = 800^2 + 783^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253089 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1253059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626544 + 626545.

It is an arithmetic number, because the mean of its divisors is an integer number (626545).

2^1253089 is an apocalyptic number.

It is an amenable number.

1253089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253089 is an equidigital number, since it uses as much as digits as its factorization.

1253089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1253089 is about 1119.4145791439. The cubic root of 1253089 is about 107.8103954921.

The spelling of 1253089 in words is "one million, two hundred fifty-three thousand, eighty-nine".