1081545412 has 12 divisors (see below), whose sum is σ = 1895504940. Its totient is φ = 539972576.

The previous prime is 1081545403. The next prime is 1081545431. The reversal of 1081545412 is 2145451801.

It can be written as a sum of positive squares in 2 ways, for example, as 758121156 + 323424256 = 27534^2 + 17984^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196987 + ... + 202402.

It is an arithmetic number, because the mean of its divisors is an integer number (157958745).

Almost surely, 2^1081545412 is an apocalyptic number.

It is an amenable number.

1081545412 is a deficient number, since it is larger than the sum of its proper divisors (813959528).

1081545412 is a wasteful number, since it uses less digits than its factorization.

1081545412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400070 (or 400068 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 1081545412 is about 32886.8577398328. The cubic root of 1081545412 is about 1026.4747083534.

The spelling of 1081545412 in words is "one billion, eighty-one million, five hundred forty-five thousand, four hundred twelve".