2911249 has 4 divisors (see below), whose sum is σ = 3175920. Its totient is φ = 2646580.

The previous prime is 2911247. The next prime is 2911291. The reversal of 2911249 is 9421192.

It is a happy number.

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 2911249 - 2¹ = 2911247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2911243) 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, 132319 + ... + 132340.

It is an arithmetic number, because the mean of its divisors is an integer number (793980).

2^2911249 is an apocalyptic number.

It is an amenable number.

2911249 is a deficient number, since it is larger than the sum of its proper divisors (264671).

2911249 is a wasteful number, since it uses less digits than its factorization.

2911249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264670.

The product of its digits is 1296, while the sum is 28.

The square root of 2911249 is about 1706.2382600329. The cubic root of 2911249 is about 142.7884625578.

It can be divided in two parts, 29112 and 49, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 2911249 in words is "two million, nine hundred eleven thousand, two hundred forty-nine".