1344522457 has 4 divisors (see below), whose sum is σ = 1355109376. Its totient is φ = 1333935540.

The previous prime is 1344522451. The next prime is 1344522461. The reversal of 1344522457 is 7542254431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7542254431 = 29 ⋅260077739.

It is a cyclic number.

It is not a de Polignac number, because 1344522457 - 2³ = 1344522449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344522451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5293269 + ... + 5293522.

It is an arithmetic number, because the mean of its divisors is an integer number (338777344).

Almost surely, 2^1344522457 is an apocalyptic number.

It is an amenable number.

1344522457 is a deficient number, since it is larger than the sum of its proper divisors (10586919).

1344522457 is a wasteful number, since it uses less digits than its factorization.

1344522457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10586918.

The product of its digits is 134400, while the sum is 37.

The square root of 1344522457 is about 36667.7304588108. The cubic root of 1344522457 is about 1103.7126499684.

Adding to 1344522457 its reverse (7542254431), we get a palindrome (8886776888).

The spelling of 1344522457 in words is "one billion, three hundred forty-four million, five hundred twenty-two thousand, four hundred fifty-seven".