1061281064 has 64 divisors (see below), whose sum is σ = 2110646160. Its totient is φ = 499599360.

The previous prime is 1061281031. The next prime is 1061281073. The reversal of 1061281064 is 4601821601.

It can be written as a sum of positive squares in 8 ways, for example, as 147428164 + 913852900 = 12142^2 + 30230^2 .

It is a super-2 number, since 2×1061281064² = 2252634993609944192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1905074 + ... + 1905630.

Almost surely, 2^1061281064 is an apocalyptic number.

It is an amenable number.

1061281064 is a deficient number, since it is larger than the sum of its proper divisors (1049365096).

1061281064 is a wasteful number, since it uses less digits than its factorization.

1061281064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1061281064 is about 32577.3090355849. The cubic root of 1061281064 is about 1020.0234084081.

The spelling of 1061281064 in words is "one billion, sixty-one million, two hundred eighty-one thousand, sixty-four".