65449193 has 4 divisors (see below), whose sum is σ = 65598720. Its totient is φ = 65299668.

The previous prime is 65449183. The next prime is 65449207. The reversal of 65449193 is 39194456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65449193 - 2⁴ = 65449177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65449193.

It is not an unprimeable number, because it can be changed into a prime (65449183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74105 + ... + 74982.

It is an arithmetic number, because the mean of its divisors is an integer number (16399680).

Almost surely, 2^65449193 is an apocalyptic number.

It is an amenable number.

65449193 is a deficient number, since it is larger than the sum of its proper divisors (149527).

65449193 is a wasteful number, since it uses less digits than its factorization.

65449193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149526.

The product of its digits is 116640, while the sum is 41.

The square root of 65449193 is about 8090.0675522520. The cubic root of 65449193 is about 402.9966462992.

The spelling of 65449193 in words is "sixty-five million, four hundred forty-nine thousand, one hundred ninety-three".