1081052609 has 24 divisors (see below), whose sum is σ = 1343073600. Its totient is φ = 851992128.

The previous prime is 1081052549. The next prime is 1081052653. The reversal of 1081052609 is 9062501801.

It is a de Polignac number, because none of the positive numbers 2^k-1081052609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1081052689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326042 + ... + 329340.

It is an arithmetic number, because the mean of its divisors is an integer number (55961400).

Almost surely, 2^1081052609 is an apocalyptic number.

It is an amenable number.

1081052609 is a deficient number, since it is larger than the sum of its proper divisors (262020991).

1081052609 is a wasteful number, since it uses less digits than its factorization.

1081052609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609 (or 3596 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1081052609 is about 32879.3644859508. The cubic root of 1081052609 is about 1026.3187812700.

The spelling of 1081052609 in words is "one billion, eighty-one million, fifty-two thousand, six hundred nine".