1448163613 has 4 divisors (see below), whose sum is σ = 1559560828. Its totient is φ = 1336766400.

The previous prime is 1448163571. The next prime is 1448163779. The reversal of 1448163613 is 3163618441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3163618441 = 167 ⋅18943823.

It can be written as a sum of positive squares in 2 ways, for example, as 183792249 + 1264371364 = 13557^2 + 35558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1448163613 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 (1448166613) 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, 55698588 + ... + 55698613.

It is an arithmetic number, because the mean of its divisors is an integer number (389890207).

Almost surely, 2^1448163613 is an apocalyptic number.

1448163613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1448163613 is a deficient number, since it is larger than the sum of its proper divisors (111397215).

1448163613 is a wasteful number, since it uses less digits than its factorization.

1448163613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111397214.

The product of its digits is 41472, while the sum is 37.

The square root of 1448163613 is about 38054.7449472467. The cubic root of 1448163613 is about 1131.3731741463.

The spelling of 1448163613 in words is "one billion, four hundred forty-eight million, one hundred sixty-three thousand, six hundred thirteen".