2491057103 has 2 divisors, whose sum is σ = 2491057104. Its totient is φ = 2491057102.

The previous prime is 2491057099. The next prime is 2491057169. The reversal of 2491057103 is 3017501942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2491057103 - 2² = 2491057099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2491057103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2491056103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245528551 + 1245528552.

It is an arithmetic number, because the mean of its divisors is an integer number (1245528552).

Almost surely, 2^2491057103 is an apocalyptic number.

2491057103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2491057103 is an equidigital number, since it uses as much as digits as its factorization.

2491057103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 2491057103 is about 49910.4909112303. The cubic root of 2491057103 is about 1355.5885576503.

It can be divided in two parts, 249105710 and 3, that multiplied together give a triangular number (747317130 = T₃₈₆₆₀).

The spelling of 2491057103 in words is "two billion, four hundred ninety-one million, fifty-seven thousand, one hundred three".