1358983549 has 48 divisors (see below), whose sum is σ = 1788881920. Its totient is φ = 1009324800.

The previous prime is 1358983511. The next prime is 1358983601. The reversal of 1358983549 is 9453898531.

It is not a de Polignac number, because 1358983549 - 2²¹ = 1356886397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1358983549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1358986549) 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 47 ways as a sum of consecutive naturals, for example, 1916407 + ... + 1917115.

Almost surely, 2^1358983549 is an apocalyptic number.

It is an amenable number.

1358983549 is a deficient number, since it is larger than the sum of its proper divisors (429898371).

1358983549 is a wasteful number, since it uses less digits than its factorization.

1358983549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 831 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 55.

The square root of 1358983549 is about 36864.3940544260. The cubic root of 1358983549 is about 1107.6555633824.

The spelling of 1358983549 in words is "one billion, three hundred fifty-eight million, nine hundred eighty-three thousand, five hundred forty-nine".