605078249 has 4 divisors (see below), whose sum is σ = 605339280. Its totient is φ = 604817220.

The previous prime is 605078233. The next prime is 605078251. The reversal of 605078249 is 942870506.

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, and also an emirpimes, since its reverse is a distinct semiprime: 942870506 = 2 ⋅471435253.

It is a cyclic number.

It is not a de Polignac number, because 605078249 - 2⁴ = 605078233 is a prime.

It is a super-2 number, since 2×605078249² = 732239374825812002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605078849) 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 3 ways as a sum of consecutive naturals, for example, 127007 + ... + 131684.

It is an arithmetic number, because the mean of its divisors is an integer number (151334820).

Almost surely, 2^605078249 is an apocalyptic number.

It is an amenable number.

605078249 is a deficient number, since it is larger than the sum of its proper divisors (261031).

605078249 is a wasteful number, since it uses less digits than its factorization.

605078249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261030.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 605078249 is about 24598.3383381886. The cubic root of 605078249 is about 845.8055173706.

The spelling of 605078249 in words is "six hundred five million, seventy-eight thousand, two hundred forty-nine".