1344799551 has 4 divisors (see below), whose sum is σ = 1793066072. Its totient is φ = 896533032.

The previous prime is 1344799543. The next prime is 1344799583. The reversal of 1344799551 is 1559974431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1559974431 = 3 ⋅519991477.

It is not a de Polignac number, because 1344799551 - 2³ = 1344799543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344799551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344799751) 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, 224133256 + ... + 224133261.

It is an arithmetic number, because the mean of its divisors is an integer number (448266518).

Almost surely, 2^1344799551 is an apocalyptic number.

1344799551 is a deficient number, since it is larger than the sum of its proper divisors (448266521).

1344799551 is an equidigital number, since it uses as much as digits as its factorization.

1344799551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448266520.

The product of its digits is 680400, while the sum is 48.

The square root of 1344799551 is about 36671.5087090782. The cubic root of 1344799551 is about 1103.7884665143.

The spelling of 1344799551 in words is "one billion, three hundred forty-four million, seven hundred ninety-nine thousand, five hundred fifty-one".