1355220245 has 8 divisors (see below), whose sum is σ = 1626950016. Its totient is φ = 1083719056.

The previous prime is 1355220233. The next prime is 1355220281. The reversal of 1355220245 is 5420225531.

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 1355220245 - 2⁸ = 1355219989 is a prime.

It is a Duffinian 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, 43817 + ... + 68046.

It is an arithmetic number, because the mean of its divisors is an integer number (203368752).

Almost surely, 2^1355220245 is an apocalyptic number.

It is an amenable number.

1355220245 is a deficient number, since it is larger than the sum of its proper divisors (271729771).

1355220245 is a wasteful number, since it uses less digits than its factorization.

1355220245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114291.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1355220245 is about 36813.3161369633. The cubic root of 1355220245 is about 1106.6321763799.

Adding to 1355220245 its reverse (5420225531), we get a palindrome (6775445776).

The spelling of 1355220245 in words is "one billion, three hundred fifty-five million, two hundred twenty thousand, two hundred forty-five".