195974593 has 2 divisors, whose sum is σ = 195974594. Its totient is φ = 195974592.

The previous prime is 195974567. The next prime is 195974609. The reversal of 195974593 is 395479591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192848769 + 3125824 = 13887^2 + 1768^2 .

It is a cyclic number.

It is not a de Polignac number, because 195974593 - 2¹³ = 195966401 is a prime.

It is a super-2 number, since 2×195974593² = 76812082203031298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 195974593.

It is not a weakly prime, because it can be changed into another prime (195974543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97987296 + 97987297.

It is an arithmetic number, because the mean of its divisors is an integer number (97987297).

Almost surely, 2^195974593 is an apocalyptic number.

It is an amenable number.

195974593 is a deficient number, since it is larger than the sum of its proper divisors (1).

195974593 is an equidigital number, since it uses as much as digits as its factorization.

195974593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1530900, while the sum is 52.

The square root of 195974593 is about 13999.0925777352. The cubic root of 195974593 is about 580.8534729828.

The spelling of 195974593 in words is "one hundred ninety-five million, nine hundred seventy-four thousand, five hundred ninety-three".