1248424121 has 16 divisors (see below), whose sum is σ = 1511654400. Its totient is φ = 1006494720.

The previous prime is 1248424091. The next prime is 1248424139. The reversal of 1248424121 is 1214248421.

It is not a de Polignac number, because 1248424121 - 2⁶ = 1248424057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248424171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306305 + ... + 310353.

It is an arithmetic number, because the mean of its divisors is an integer number (94478400).

Almost surely, 2^1248424121 is an apocalyptic number.

It is an amenable number.

1248424121 is a deficient number, since it is larger than the sum of its proper divisors (263230279).

1248424121 is a wasteful number, since it uses less digits than its factorization.

1248424121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664.

The product of its digits is 4096, while the sum is 29.

The square root of 1248424121 is about 35333.0457362509. The cubic root of 1248424121 is about 1076.7644708646.

The spelling of 1248424121 in words is "one billion, two hundred forty-eight million, four hundred twenty-four thousand, one hundred twenty-one".