3091245 has 8 divisors (see below), whose sum is σ = 4946016. Its totient is φ = 1648656.

The previous prime is 3091219. The next prime is 3091259. The reversal of 3091245 is 5421903.

3091245 = 139² + 140² + ... + 228².

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

It is not a de Polignac number, because 3091245 - 2⁵ = 3091213 is a prime.

3091245 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103027 + ... + 103056.

It is an arithmetic number, because the mean of its divisors is an integer number (618252).

Almost surely, 2^3091245 is an apocalyptic number.

It is an amenable number.

3091245 is a deficient number, since it is larger than the sum of its proper divisors (1854771).

3091245 is a wasteful number, since it uses less digits than its factorization.

3091245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206091.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 3091245 is about 1758.1936753384. The cubic root of 3091245 is about 145.6725789628.

The spelling of 3091245 in words is "three million, ninety-one thousand, two hundred forty-five".