1248081413 has 2 divisors, whose sum is σ = 1248081414. Its totient is φ = 1248081412.

The previous prime is 1248081403. The next prime is 1248081463. The reversal of 1248081413 is 3141808421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 978563524 + 269517889 = 31282^2 + 16417^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248081413 - 2⁴ = 1248081397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1248081413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1248081403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624040706 + 624040707.

It is an arithmetic number, because the mean of its divisors is an integer number (624040707).

Almost surely, 2^1248081413 is an apocalyptic number.

It is an amenable number.

1248081413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248081413 is an equidigital number, since it uses as much as digits as its factorization.

1248081413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1248081413 is about 35328.1957223971. The cubic root of 1248081413 is about 1076.6659334195.

Adding to 1248081413 its reverse (3141808421), we get a palindrome (4389889834).

The spelling of 1248081413 in words is "one billion, two hundred forty-eight million, eighty-one thousand, four hundred thirteen".