2491275 has 24 divisors (see below), whose sum is σ = 4196160. Its totient is φ = 1303840.

The previous prime is 2491259. The next prime is 2491289. The reversal of 2491275 is 5721942.

It is not a de Polignac number, because 2491275 - 2⁴ = 2491259 is a prime.

It is a super-2 number, since 2×2491275² = 12412902251250, which contains 22 as substring.

Its product of digits (5040) is a multiple of the sum of its prime divisors (630).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4144 + ... + 4706.

It is an arithmetic number, because the mean of its divisors is an integer number (174840).

2^2491275 is an apocalyptic number.

2491275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2491275 is a deficient number, since it is larger than the sum of its proper divisors (1704885).

2491275 is a wasteful number, since it uses less digits than its factorization.

2491275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 630 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 2491275 is about 1578.3773313121. The cubic root of 2491275 is about 135.5628081710.

The spelling of 2491275 in words is "two million, four hundred ninety-one thousand, two hundred seventy-five".