1253849 has 2 divisors, whose sum is σ = 1253850. Its totient is φ = 1253848.

The previous prime is 1253839. The next prime is 1253851. The reversal of 1253849 is 9483521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 931225 + 322624 = 965^2 + 568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253849 is a prime.

Together with 1253851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1253839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626924 + 626925.

It is an arithmetic number, because the mean of its divisors is an integer number (626925).

2^1253849 is an apocalyptic number.

It is an amenable number.

1253849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253849 is an equidigital number, since it uses as much as digits as its factorization.

1253849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 1253849 is about 1119.7539908391. The cubic root of 1253849 is about 107.8321867991.

The spelling of 1253849 in words is "one million, two hundred fifty-three thousand, eight hundred forty-nine".