195081249 has 8 divisors (see below), whose sum is σ = 283754592. Its totient is φ = 118231040.

The previous prime is 195081241. The next prime is 195081269. The reversal of 195081249 is 942180591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195081249 - 2³ = 195081241 is a prime.

It is a super-2 number, since 2×195081249² = 76113387422800002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195081241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2955744 + ... + 2955809.

It is an arithmetic number, because the mean of its divisors is an integer number (35469324).

Almost surely, 2^195081249 is an apocalyptic number.

It is an amenable number.

195081249 is a deficient number, since it is larger than the sum of its proper divisors (88673343).

195081249 is a wasteful number, since it uses less digits than its factorization.

195081249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911567.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 195081249 is about 13967.1489216662. The cubic root of 195081249 is about 579.9695277292.

The spelling of 195081249 in words is "one hundred ninety-five million, eighty-one thousand, two hundred forty-nine".