1081329626 has 12 divisors (see below), whose sum is σ = 1747034142. Its totient is φ = 498997824.

The previous prime is 1081329607. The next prime is 1081329647. The reversal of 1081329626 is 6269231801.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1080765625 + 564001 = 32875^2 + 751^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1081329626.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 164450 + ... + 170898.

Almost surely, 2^1081329626 is an apocalyptic number.

1081329626 is a deficient number, since it is larger than the sum of its proper divisors (665704516).

1081329626 is an frugal number, since it uses more digits than its factorization.

1081329626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12913 (or 6464 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1081329626 is about 32883.5768431599. The cubic root of 1081329626 is about 1026.4064376482.

The spelling of 1081329626 in words is "one billion, eighty-one million, three hundred twenty-nine thousand, six hundred twenty-six".