394201051 has 2 divisors, whose sum is σ = 394201052. Its totient is φ = 394201050.

The previous prime is 394201043. The next prime is 394201057. The reversal of 394201051 is 150102493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 394201051 - 2³ = 394201043 is a prime.

It is not a weakly prime, because it can be changed into another prime (394201057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197100525 + 197100526.

It is an arithmetic number, because the mean of its divisors is an integer number (197100526).

Almost surely, 2^394201051 is an apocalyptic number.

394201051 is a deficient number, since it is larger than the sum of its proper divisors (1).

394201051 is an equidigital number, since it uses as much as digits as its factorization.

394201051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 394201051 is about 19854.4969969022. The cubic root of 394201051 is about 733.2283682870.

The spelling of 394201051 in words is "three hundred ninety-four million, two hundred one thousand, fifty-one".