1061532906 has 32 divisors (see below), whose sum is σ = 2448631680. Its totient is φ = 300511296.

The previous prime is 1061532881. The next prime is 1061532917. The reversal of 1061532906 is 6092351601.

It is a happy number.

It is a super-2 number, since 2×1061532906² = 2253704221041609672, 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, 111361 + ... + 120516.

It is an arithmetic number, because the mean of its divisors is an integer number (76519740).

Almost surely, 2^1061532906 is an apocalyptic number.

1061532906 is an abundant number, since it is smaller than the sum of its proper divisors (1387098774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1061532906 is a wasteful number, since it uses less digits than its factorization.

1061532906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231998.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1061532906 is about 32581.1741040743. The cubic root of 1061532906 is about 1020.1040858795.

The spelling of 1061532906 in words is "one billion, sixty-one million, five hundred thirty-two thousand, nine hundred six".