1344919897 has 4 divisors (see below), whose sum is σ = 1345041360. Its totient is φ = 1344798436.

The previous prime is 1344919867. The next prime is 1344919907. The reversal of 1344919897 is 7989194431.

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: 7989194431 = 743 ⋅10752617.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344919897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344919837) 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, 42247 + ... + 66892.

It is an arithmetic number, because the mean of its divisors is an integer number (336260340).

Almost surely, 2^1344919897 is an apocalyptic number.

It is an amenable number.

1344919897 is a deficient number, since it is larger than the sum of its proper divisors (121463).

1344919897 is a wasteful number, since it uses less digits than its factorization.

1344919897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121462.

The product of its digits is 1959552, while the sum is 55.

The square root of 1344919897 is about 36673.1495375022. The cubic root of 1344919897 is about 1103.8213915115.

The spelling of 1344919897 in words is "one billion, three hundred forty-four million, nine hundred nineteen thousand, eight hundred ninety-seven".