1353389481 has 12 divisors (see below), whose sum is σ = 1984074352. Its totient is φ = 888792696.

The previous prime is 1353389461. The next prime is 1353389491. The reversal of 1353389481 is 1849833531.

1353389481 is a `hidden beast` number, since 135 + 3 + 38 + 9 + 481 = 666.

It is not a de Polignac number, because 1353389481 - 2⁵ = 1353389449 is a prime.

It is a super-2 number, since 2×1353389481² = 3663326174562898722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1353389461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1121611 + ... + 1122816.

Almost surely, 2^1353389481 is an apocalyptic number.

It is an amenable number.

1353389481 is a deficient number, since it is larger than the sum of its proper divisors (630684871).

1353389481 is a wasteful number, since it uses less digits than its factorization.

1353389481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244500 (or 2244497 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1353389481 is about 36788.4422203496. The cubic root of 1353389481 is about 1106.1336361756.

The spelling of 1353389481 in words is "one billion, three hundred fifty-three million, three hundred eighty-nine thousand, four hundred eighty-one".