1089209537 has 8 divisors (see below), whose sum is σ = 1197952896. Its totient is φ = 984031632.

The previous prime is 1089209507. The next prime is 1089209543. The reversal of 1089209537 is 7359029801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1089209537 - 2⁸ = 1089209281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1089209507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890723 + ... + 891944.

It is an arithmetic number, because the mean of its divisors is an integer number (149744112).

Almost surely, 2^1089209537 is an apocalyptic number.

It is an amenable number.

1089209537 is a deficient number, since it is larger than the sum of its proper divisors (108743359).

1089209537 is a wasteful number, since it uses less digits than its factorization.

1089209537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782727.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 1089209537 is about 33003.1746503272. The cubic root of 1089209537 is about 1028.8936299448.

The spelling of 1089209537 in words is "one billion, eighty-nine million, two hundred nine thousand, five hundred thirty-seven".