378835253 has 2 divisors, whose sum is σ = 378835254. Its totient is φ = 378835252.

The previous prime is 378835241. The next prime is 378835273. The reversal of 378835253 is 352538873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373185124 + 5650129 = 19318^2 + 2377^2 .

It is an emirp because it is prime and its reverse (352538873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 378835253 - 2¹² = 378831157 is a prime.

It is a super-2 number, since 2×378835253² = 287032297831148018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378835273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189417626 + 189417627.

It is an arithmetic number, because the mean of its divisors is an integer number (189417627).

Almost surely, 2^378835253 is an apocalyptic number.

It is an amenable number.

378835253 is a deficient number, since it is larger than the sum of its proper divisors (1).

378835253 is an equidigital number, since it uses as much as digits as its factorization.

378835253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 44.

The square root of 378835253 is about 19463.6906315323. The cubic root of 378835253 is about 723.5748479382.

The spelling of 378835253 in words is "three hundred seventy-eight million, eight hundred thirty-five thousand, two hundred fifty-three".