1995277241 has 2 divisors, whose sum is σ = 1995277242. Its totient is φ = 1995277240.

The previous prime is 1995277231. The next prime is 1995277247. The reversal of 1995277241 is 1427725991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1991033641 + 4243600 = 44621^2 + 2060^2 .

It is an emirp because it is prime and its reverse (1427725991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1995277241 - 2²² = 1991082937 is a prime.

It is a super-2 number, since 2×1995277241² = 7962262536905144162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1995277247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997638620 + 997638621.

It is an arithmetic number, because the mean of its divisors is an integer number (997638621).

Almost surely, 2^1995277241 is an apocalyptic number.

It is an amenable number.

1995277241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1995277241 is an equidigital number, since it uses as much as digits as its factorization.

1995277241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 47.

The square root of 1995277241 is about 44668.5262908908. The cubic root of 1995277241 is about 1258.9285510160.

The spelling of 1995277241 in words is "one billion, nine hundred ninety-five million, two hundred seventy-seven thousand, two hundred forty-one".