378157201 has 2 divisors, whose sum is σ = 378157202. Its totient is φ = 378157200.

The previous prime is 378157183. The next prime is 378157207. The reversal of 378157201 is 102751873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239506576 + 138650625 = 15476^2 + 11775^2 .

It is a cyclic number.

It is not a de Polignac number, because 378157201 - 2¹¹ = 378155153 is a prime.

It is not a weakly prime, because it can be changed into another prime (378157207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189078600 + 189078601.

It is an arithmetic number, because the mean of its divisors is an integer number (189078601).

Almost surely, 2^378157201 is an apocalyptic number.

It is an amenable number.

378157201 is a deficient number, since it is larger than the sum of its proper divisors (1).

378157201 is an equidigital number, since it uses as much as digits as its factorization.

378157201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 378157201 is about 19446.2644484744. The cubic root of 378157201 is about 723.1428973119.

The spelling of 378157201 in words is "three hundred seventy-eight million, one hundred fifty-seven thousand, two hundred one".