1080965421 has 6 divisors (see below), whose sum is σ = 1561394510. Its totient is φ = 720643608.

The previous prime is 1080965419. The next prime is 1080965437. The reversal of 1080965421 is 1245690801.

1080965421 is a `hidden beast` number, since 108 + 0 + 9 + 6 + 542 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1062042921 + 18922500 = 32589^2 + 4350^2 .

It is not a de Polignac number, because 1080965421 - 2¹ = 1080965419 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 (1080965411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60053626 + ... + 60053643.

Almost surely, 2^1080965421 is an apocalyptic number.

It is an amenable number.

1080965421 is a deficient number, since it is larger than the sum of its proper divisors (480429089).

1080965421 is a wasteful number, since it uses less digits than its factorization.

1080965421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120107275 (or 120107272 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1080965421 is about 32878.0385820079. The cubic root of 1080965421 is about 1026.2911893080.

The spelling of 1080965421 in words is "one billion, eighty million, nine hundred sixty-five thousand, four hundred twenty-one".