1344143021 has 6 divisors (see below), whose sum is σ = 1455492330. Its totient is φ = 1240747248.

The previous prime is 1344142999. The next prime is 1344143033. The reversal of 1344143021 is 1203414431.

It can be written as a sum of positive squares in 3 ways, for example, as 10797796 + 1333345225 = 3286^2 + 36515^2 .

It is not a de Polignac number, because 1344143021 - 2¹⁸ = 1343880877 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 (1344143071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3976586 + ... + 3976923.

It is an arithmetic number, because the mean of its divisors is an integer number (242582055).

Almost surely, 2^1344143021 is an apocalyptic number.

It is an amenable number.

1344143021 is a deficient number, since it is larger than the sum of its proper divisors (111349309).

1344143021 is an equidigital number, since it uses as much as digits as its factorization.

1344143021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953535 (or 7953522 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1344143021 is about 36662.5561165612. The cubic root of 1344143021 is about 1103.6088144115.

Adding to 1344143021 its reverse (1203414431), we get a palindrome (2547557452).

The spelling of 1344143021 in words is "one billion, three hundred forty-four million, one hundred forty-three thousand, twenty-one".