1089516537 has 6 divisors (see below), whose sum is σ = 1573746122. Its totient is φ = 726344352.

The previous prime is 1089516529. The next prime is 1089516539. The reversal of 1089516537 is 7356159801.

It is a happy number.

1089516537 is a `hidden beast` number, since 1 + 0 + 89 + 516 + 53 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 865595241 + 223921296 = 29421^2 + 14964^2 .

It is not a de Polignac number, because 1089516537 - 2³ = 1089516529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1089516492 and 1089516501.

It is not an unprimeable number, because it can be changed into a prime (1089516539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60528688 + ... + 60528705.

Almost surely, 2^1089516537 is an apocalyptic number.

It is an amenable number.

1089516537 is a deficient number, since it is larger than the sum of its proper divisors (484229585).

1089516537 is a wasteful number, since it uses less digits than its factorization.

1089516537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121057399 (or 121057396 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 1089516537 is about 33007.8253903525. The cubic root of 1089516537 is about 1028.9902874019.

The spelling of 1089516537 in words is "one billion, eighty-nine million, five hundred sixteen thousand, five hundred thirty-seven".