1353724849 has 3 divisors (see below), whose sum is σ = 1353761643. Its totient is φ = 1353688056.

The previous prime is 1353724817. The next prime is 1353724861. The reversal of 1353724849 is 9484273531.

The square root of 1353724849 is 36793.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 88642225 + 1265082624 = 9415^2 + 35568^2 .

It is not a de Polignac number, because 1353724849 - 2⁵ = 1353724817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1353724799 and 1353724808.

It is not an unprimeable number, because it can be changed into a prime (1353724049) 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 2 ways as a sum of consecutive naturals, for example, 18397 + ... + 55189.

It is an arithmetic number, because the mean of its divisors is an integer number (451253881).

Almost surely, 2^1353724849 is an apocalyptic number.

1353724849 is the 36793-rd square number.

1353724849 is the 18397-th centered octagonal number.

It is an amenable number.

1353724849 is a deficient number, since it is larger than the sum of its proper divisors (36794).

1353724849 is an frugal number, since it uses more digits than its factorization.

1353724849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73586 (or 36793 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The cubic root of 1353724849 is about 1106.2249947469.

The spelling of 1353724849 in words is "one billion, three hundred fifty-three million, seven hundred twenty-four thousand, eight hundred forty-nine".