249394065 has 8 divisors (see below), whose sum is σ = 399030528. Its totient is φ = 133010160.

The previous prime is 249394049. The next prime is 249394127. The reversal of 249394065 is 560493942.

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

It is not a de Polignac number, because 249394065 - 2⁴ = 249394049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8313121 + ... + 8313150.

It is an arithmetic number, because the mean of its divisors is an integer number (49878816).

Almost surely, 2^249394065 is an apocalyptic number.

It is an amenable number.

249394065 is a deficient number, since it is larger than the sum of its proper divisors (149636463).

249394065 is a wasteful number, since it uses less digits than its factorization.

249394065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16626279.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 249394065 is about 15792.2153290791. The cubic root of 249394065 is about 629.4511596950.

The spelling of 249394065 in words is "two hundred forty-nine million, three hundred ninety-four thousand, sixty-five".