1246040041 has 4 divisors (see below), whose sum is σ = 1319336532. Its totient is φ = 1172743552.

The previous prime is 1246040027. The next prime is 1246040051. The reversal of 1246040041 is 1400406421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1400406421 = 353 ⋅3967157.

It can be written as a sum of positive squares in 2 ways, for example, as 762919641 + 483120400 = 27621^2 + 21980^2 .

It is a cyclic number.

It is not a de Polignac number, because 1246040041 - 2¹⁷ = 1245908969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1246039994 and 1246040021.

It is not an unprimeable number, because it can be changed into a prime (1246040021) 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, 36648220 + ... + 36648253.

It is an arithmetic number, because the mean of its divisors is an integer number (329834133).

Almost surely, 2^1246040041 is an apocalyptic number.

It is an amenable number.

1246040041 is a deficient number, since it is larger than the sum of its proper divisors (73296491).

1246040041 is an equidigital number, since it uses as much as digits as its factorization.

1246040041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73296490.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1246040041 is about 35299.2923583462. The cubic root of 1246040041 is about 1076.0786119396.

Adding to 1246040041 its reverse (1400406421), we get a palindrome (2646446462).

The spelling of 1246040041 in words is "one billion, two hundred forty-six million, forty thousand, forty-one".