1257253 has 2 divisors, whose sum is σ = 1257254. Its totient is φ = 1257252.

The previous prime is 1257251. The next prime is 1257281. The reversal of 1257253 is 3527521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1214404 + 42849 = 1102^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1257253 - 2¹ = 1257251 is a prime.

Together with 1257251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1257251) 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, 628626 + 628627.

It is an arithmetic number, because the mean of its divisors is an integer number (628627).

2^1257253 is an apocalyptic number.

It is an amenable number.

1257253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257253 is an equidigital number, since it uses as much as digits as its factorization.

1257253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 25.

The square root of 1257253 is about 1121.2729373351. The cubic root of 1257253 is about 107.9296810198.

The spelling of 1257253 in words is "one million, two hundred fifty-seven thousand, two hundred fifty-three".