195529487 has 2 divisors, whose sum is σ = 195529488. Its totient is φ = 195529486.

The previous prime is 195529429. The next prime is 195529501. The reversal of 195529487 is 784925591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195529487 - 2⁸ = 195529231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195529387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97764743 + 97764744.

It is an arithmetic number, because the mean of its divisors is an integer number (97764744).

Almost surely, 2^195529487 is an apocalyptic number.

195529487 is a deficient number, since it is larger than the sum of its proper divisors (1).

195529487 is an equidigital number, since it uses as much as digits as its factorization.

195529487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 50.

The square root of 195529487 is about 13983.1858673194. The cubic root of 195529487 is about 580.4133864285.

The spelling of 195529487 in words is "one hundred ninety-five million, five hundred twenty-nine thousand, four hundred eighty-seven".