378130057 has 2 divisors, whose sum is σ = 378130058. Its totient is φ = 378130056.

The previous prime is 378130021. The next prime is 378130063. The reversal of 378130057 is 750031873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312016896 + 66113161 = 17664^2 + 8131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378130057 is a prime.

It is not a weakly prime, because it can be changed into another prime (378130007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189065028 + 189065029.

It is an arithmetic number, because the mean of its divisors is an integer number (189065029).

Almost surely, 2^378130057 is an apocalyptic number.

It is an amenable number.

378130057 is a deficient number, since it is larger than the sum of its proper divisors (1).

378130057 is an equidigital number, since it uses as much as digits as its factorization.

378130057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 378130057 is about 19445.5665127041. The cubic root of 378130057 is about 723.1255945778.

The spelling of 378130057 in words is "three hundred seventy-eight million, one hundred thirty thousand, fifty-seven".