195038377 has 2 divisors, whose sum is σ = 195038378. Its totient is φ = 195038376.

The previous prime is 195038351. The next prime is 195038449. The reversal of 195038377 is 773830591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194212096 + 826281 = 13936^2 + 909^2 .

It is an emirp because it is prime and its reverse (773830591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195038377 - 2¹⁵ = 195005609 is a prime.

It is not a weakly prime, because it can be changed into another prime (195038317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97519188 + 97519189.

It is an arithmetic number, because the mean of its divisors is an integer number (97519189).

Almost surely, 2^195038377 is an apocalyptic number.

It is an amenable number.

195038377 is a deficient number, since it is larger than the sum of its proper divisors (1).

195038377 is an equidigital number, since it uses as much as digits as its factorization.

195038377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 195038377 is about 13965.6140931933. The cubic root of 195038377 is about 579.9270389792.

The spelling of 195038377 in words is "one hundred ninety-five million, thirty-eight thousand, three hundred seventy-seven".