195789037 has 2 divisors, whose sum is σ = 195789038. Its totient is φ = 195789036.

The previous prime is 195789023. The next prime is 195789047. The reversal of 195789037 is 730987591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157025961 + 38763076 = 12531^2 + 6226^2 .

It is an emirp because it is prime and its reverse (730987591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195789037 - 2⁷ = 195788909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195789047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97894518 + 97894519.

It is an arithmetic number, because the mean of its divisors is an integer number (97894519).

Almost surely, 2^195789037 is an apocalyptic number.

It is an amenable number.

195789037 is a deficient number, since it is larger than the sum of its proper divisors (1).

195789037 is an equidigital number, since it uses as much as digits as its factorization.

195789037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 195789037 is about 13992.4635786555. The cubic root of 195789037 is about 580.6700905687.

The spelling of 195789037 in words is "one hundred ninety-five million, seven hundred eighty-nine thousand, thirty-seven".