1355960961 has 6 divisors (see below), whose sum is σ = 1958610290. Its totient is φ = 903973968.

The previous prime is 1355960939. The next prime is 1355960989. The reversal of 1355960961 is 1690695531.

1355960961 is a `hidden beast` number, since 1 + 3 + 559 + 6 + 0 + 96 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1285652736 + 70308225 = 35856^2 + 8385^2 .

It is not a de Polignac number, because 1355960961 - 2¹⁰ = 1355959937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355960461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75331156 + ... + 75331173.

Almost surely, 2^1355960961 is an apocalyptic number.

It is an amenable number.

1355960961 is a deficient number, since it is larger than the sum of its proper divisors (602649329).

1355960961 is a wasteful number, since it uses less digits than its factorization.

1355960961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150662335 (or 150662332 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 1355960961 is about 36823.3751983709. The cubic root of 1355960961 is about 1106.8337551436.

The spelling of 1355960961 in words is "one billion, three hundred fifty-five million, nine hundred sixty thousand, nine hundred sixty-one".