249434605 has 8 divisors (see below), whose sum is σ = 342081792. Its totient is φ = 171040848.

The previous prime is 249434599. The next prime is 249434629. The reversal of 249434605 is 506434942.

It is a happy number.

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 249434605 - 2¹³ = 249426413 is a prime.

It is a Duffinian number.

It is a congruent 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, 3563317 + ... + 3563386.

It is an arithmetic number, because the mean of its divisors is an integer number (42760224).

Almost surely, 2^249434605 is an apocalyptic number.

It is an amenable number.

249434605 is a deficient number, since it is larger than the sum of its proper divisors (92647187).

249434605 is an equidigital number, since it uses as much as digits as its factorization.

249434605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7126715.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 249434605 is about 15793.4988207173. The cubic root of 249434605 is about 629.4852644460.

The spelling of 249434605 in words is "two hundred forty-nine million, four hundred thirty-four thousand, six hundred five".