1353938445 has 12 divisors (see below), whose sum is σ = 2346826716. Its totient is φ = 722100480.

The previous prime is 1353938389. The next prime is 1353938471. The reversal of 1353938445 is 5448393531.

It can be written as a sum of positive squares in 2 ways, for example, as 1034458569 + 319479876 = 32163^2 + 17874^2 .

It is not a de Polignac number, because 1353938445 - 2⁶ = 1353938381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 30087521 = 1353938445 / (1 + 3 + 5 + 3 + 9 + 3 + 8 + 4 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1353938445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15043716 + ... + 15043805.

It is an arithmetic number, because the mean of its divisors is an integer number (195568893).

Almost surely, 2^1353938445 is an apocalyptic number.

1353938445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1353938445 is a deficient number, since it is larger than the sum of its proper divisors (992888271).

1353938445 is a wasteful number, since it uses less digits than its factorization.

1353938445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30087532 (or 30087529 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 1353938445 is about 36795.9025572142. The cubic root of 1353938445 is about 1106.2831731889.

It can be divided in two parts, 13539 and 38445, that added together give a square (51984 = 228²).

The spelling of 1353938445 in words is "one billion, three hundred fifty-three million, nine hundred thirty-eight thousand, four hundred forty-five".