1449216613 has 16 divisors (see below), whose sum is σ = 1613799936. Its totient is φ = 1292368320.

The previous prime is 1449216563. The next prime is 1449216647. The reversal of 1449216613 is 3166129441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1449216613 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 (1449216113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260406 + ... + 265912.

It is an arithmetic number, because the mean of its divisors is an integer number (100862496).

Almost surely, 2^1449216613 is an apocalyptic number.

1449216613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1449216613 is a deficient number, since it is larger than the sum of its proper divisors (164583323).

1449216613 is a wasteful number, since it uses less digits than its factorization.

1449216613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204.

The product of its digits is 31104, while the sum is 37.

The square root of 1449216613 is about 38068.5777643452. The cubic root of 1449216613 is about 1131.6473253327.

The spelling of 1449216613 in words is "one billion, four hundred forty-nine million, two hundred sixteen thousand, six hundred thirteen".