1355241253 has 16 divisors (see below), whose sum is σ = 1480608000. Its totient is φ = 1235570112.

The previous prime is 1355241233. The next prime is 1355241263. The reversal of 1355241253 is 3521425531.

It is a cyclic number.

It is not a de Polignac number, because 1355241253 - 2⁵ = 1355241221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355241233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170788 + ... + 178546.

It is an arithmetic number, because the mean of its divisors is an integer number (92538000).

Almost surely, 2^1355241253 is an apocalyptic number.

It is an amenable number.

1355241253 is a deficient number, since it is larger than the sum of its proper divisors (125366747).

1355241253 is a wasteful number, since it uses less digits than its factorization.

1355241253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8124.

The product of its digits is 18000, while the sum is 31.

The square root of 1355241253 is about 36813.6014673925. The cubic root of 1355241253 is about 1106.6378945178.

Adding to 1355241253 its reverse (3521425531), we get a palindrome (4876666784).

The spelling of 1355241253 in words is "one billion, three hundred fifty-five million, two hundred forty-one thousand, two hundred fifty-three".