1248401071 has 4 divisors (see below), whose sum is σ = 1252467832. Its totient is φ = 1244334312.

The previous prime is 1248401047. The next prime is 1248401083. The reversal of 1248401071 is 1701048421.

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 1248401071 - 2⁷ = 1248400943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248401471) 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, 2032920 + ... + 2033533.

It is an arithmetic number, because the mean of its divisors is an integer number (313116958).

Almost surely, 2^1248401071 is an apocalyptic number.

1248401071 is a deficient number, since it is larger than the sum of its proper divisors (4066761).

1248401071 is an equidigital number, since it uses as much as digits as its factorization.

1248401071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066760.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1248401071 is about 35332.7195528451. The cubic root of 1248401071 is about 1076.7578439571.

Adding to 1248401071 its reverse (1701048421), we get a palindrome (2949449492).

The spelling of 1248401071 in words is "one billion, two hundred forty-eight million, four hundred one thousand, seventy-one".