195016249 has 2 divisors, whose sum is σ = 195016250. Its totient is φ = 195016248.

The previous prime is 195016189. The next prime is 195016277. The reversal of 195016249 is 942610591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106750224 + 88266025 = 10332^2 + 9395^2 .

It is a cyclic number.

It is not a de Polignac number, because 195016249 - 2⁷ = 195016121 is a prime.

It is not a weakly prime, because it can be changed into another prime (195016279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97508124 + 97508125.

It is an arithmetic number, because the mean of its divisors is an integer number (97508125).

Almost surely, 2^195016249 is an apocalyptic number.

It is an amenable number.

195016249 is a deficient number, since it is larger than the sum of its proper divisors (1).

195016249 is an equidigital number, since it uses as much as digits as its factorization.

195016249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 195016249 is about 13964.8218391786. The cubic root of 195016249 is about 579.9051063540.

The spelling of 195016249 in words is "one hundred ninety-five million, sixteen thousand, two hundred forty-nine".