1355331145 has 32 divisors (see below), whose sum is σ = 1878227712. Its totient is φ = 919683072.

The previous prime is 1355331139. The next prime is 1355331181. The reversal of 1355331145 is 5411335531.

It is not a de Polignac number, because 1355331145 - 2⁷ = 1355331017 is a prime.

It is a super-2 number, since 2×1355331145² = 3673845025214022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2013529 + ... + 2014201.

It is an arithmetic number, because the mean of its divisors is an integer number (58694616).

Almost surely, 2^1355331145 is an apocalyptic number.

It is an amenable number.

1355331145 is a deficient number, since it is larger than the sum of its proper divisors (522896567).

1355331145 is a wasteful number, since it uses less digits than its factorization.

1355331145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201.

The product of its digits is 13500, while the sum is 31.

The square root of 1355331145 is about 36814.8223545897. The cubic root of 1355331145 is about 1106.6623614270.

Adding to 1355331145 its reverse (5411335531), we get a palindrome (6766666676).

The spelling of 1355331145 in words is "one billion, three hundred fifty-five million, three hundred thirty-one thousand, one hundred forty-five".