1378253 has 2 divisors, whose sum is σ = 1378254. Its totient is φ = 1378252.

The previous prime is 1378249. The next prime is 1378271. The reversal of 1378253 is 3528731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743044 + 635209 = 862^2 + 797^2 .

It is a cyclic number.

It is not a de Polignac number, because 1378253 - 2² = 1378249 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1372253) 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, 689126 + 689127.

It is an arithmetic number, because the mean of its divisors is an integer number (689127).

2^1378253 is an apocalyptic number.

It is an amenable number.

1378253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378253 is an equidigital number, since it uses as much as digits as its factorization.

1378253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 1378253 is about 1173.9902043884. The cubic root of 1378253 is about 111.2866276735.

The spelling of 1378253 in words is "one million, three hundred seventy-eight thousand, two hundred fifty-three".