395136377 has 2 divisors, whose sum is σ = 395136378. Its totient is φ = 395136376.

The previous prime is 395136373. The next prime is 395136409. The reversal of 395136377 is 773631593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214798336 + 180338041 = 14656^2 + 13429^2 .

It is a cyclic number.

It is not a de Polignac number, because 395136377 - 2² = 395136373 is a prime.

It is a super-2 number, since 2×395136377² = 312265512857372258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (395136373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197568188 + 197568189.

It is an arithmetic number, because the mean of its divisors is an integer number (197568189).

Almost surely, 2^395136377 is an apocalyptic number.

It is an amenable number.

395136377 is a deficient number, since it is larger than the sum of its proper divisors (1).

395136377 is an equidigital number, since it uses as much as digits as its factorization.

395136377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 357210, while the sum is 44.

The square root of 395136377 is about 19878.0375540444. The cubic root of 395136377 is about 733.8078237542.

The spelling of 395136377 in words is "three hundred ninety-five million, one hundred thirty-six thousand, three hundred seventy-seven".