1089015957 has 24 divisors (see below), whose sum is σ = 1625781248. Its totient is φ = 701719200.

The previous prime is 1089015953. The next prime is 1089015973. The reversal of 1089015957 is 7595109801.

It is not a de Polignac number, because 1089015957 - 2² = 1089015953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089015953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282948 + ... + 286770.

Almost surely, 2^1089015957 is an apocalyptic number.

It is an amenable number.

1089015957 is a deficient number, since it is larger than the sum of its proper divisors (536765291).

1089015957 is a wasteful number, since it uses less digits than its factorization.

1089015957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881 (or 4878 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 1089015957 is about 33000.2417718416. The cubic root of 1089015957 is about 1028.8326728860.

The spelling of 1089015957 in words is "one billion, eighty-nine million, fifteen thousand, nine hundred fifty-seven".