378230513 has 2 divisors, whose sum is σ = 378230514. Its totient is φ = 378230512.

The previous prime is 378230497. The next prime is 378230519. The reversal of 378230513 is 315032873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194546704 + 183683809 = 13948^2 + 13553^2 .

It is an emirp because it is prime and its reverse (315032873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 378230513 - 2⁴ = 378230497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378230513.

It is not a weakly prime, because it can be changed into another prime (378230519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189115256 + 189115257.

It is an arithmetic number, because the mean of its divisors is an integer number (189115257).

Almost surely, 2^378230513 is an apocalyptic number.

It is an amenable number.

378230513 is a deficient number, since it is larger than the sum of its proper divisors (1).

378230513 is an equidigital number, since it uses as much as digits as its factorization.

378230513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 378230513 is about 19448.1493464031. The cubic root of 378230513 is about 723.1896253449.

The spelling of 378230513 in words is "three hundred seventy-eight million, two hundred thirty thousand, five hundred thirteen".