1355453405 has 8 divisors (see below), whose sum is σ = 1626804312. Its totient is φ = 1084189248.

The previous prime is 1355453389. The next prime is 1355453461. The reversal of 1355453405 is 5043545531.

It can be written as a sum of positive squares in 4 ways, for example, as 243297604 + 1112155801 = 15598^2 + 33349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1355453405 - 2⁴ = 1355453389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19967 + ... + 55763.

It is an arithmetic number, because the mean of its divisors is an integer number (203350539).

Almost surely, 2^1355453405 is an apocalyptic number.

It is an amenable number.

1355453405 is a deficient number, since it is larger than the sum of its proper divisors (271350907).

1355453405 is an equidigital number, since it uses as much as digits as its factorization.

1355453405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43375.

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 1355453405 is about 36816.4827896419. The cubic root of 1355453405 is about 1106.6956365600.

Adding to 1355453405 its reverse (5043545531), we get a palindrome (6398998936).

The spelling of 1355453405 in words is "one billion, three hundred fifty-five million, four hundred fifty-three thousand, four hundred five".