2491185343 has 4 divisors (see below), whose sum is σ = 2492048160. Its totient is φ = 2490322528.

The previous prime is 2491185337. The next prime is 2491185401. The reversal of 2491185343 is 3435811942.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2491185343 - 2⁵ = 2491185311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2491185296 and 2491185305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491185743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427063 + ... + 432856.

It is an arithmetic number, because the mean of its divisors is an integer number (623012040).

Almost surely, 2^2491185343 is an apocalyptic number.

2491185343 is a deficient number, since it is larger than the sum of its proper divisors (862817).

2491185343 is an equidigital number, since it uses as much as digits as its factorization.

2491185343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862816.

The product of its digits is 103680, while the sum is 40.

The square root of 2491185343 is about 49911.7755945428. The cubic root of 2491185343 is about 1355.6118192198.

The spelling of 2491185343 in words is "two billion, four hundred ninety-one million, one hundred eighty-five thousand, three hundred forty-three".