1089537 has 4 divisors (see below), whose sum is σ = 1452720. Its totient is φ = 726356.

The previous prime is 1089523. The next prime is 1089551. The reversal of 1089537 is 7359801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1089523) and next prime (1089551).

It is a cyclic number.

It is not a de Polignac number, because 1089537 - 2¹⁴ = 1073153 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 1089498 and 1089507.

It is not an unprimeable number, because it can be changed into a prime (1088537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181587 + ... + 181592.

It is an arithmetic number, because the mean of its divisors is an integer number (363180).

It is a Proth number, since it is equal to 133 ⋅ 2¹³ + 1 and 133 < 2¹³.

2^1089537 is an apocalyptic number.

It is an amenable number.

1089537 is a deficient number, since it is larger than the sum of its proper divisors (363183).

1089537 is an equidigital number, since it uses as much as digits as its factorization.

1089537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363182.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1089537 is about 1043.8088905542. The cubic root of 1089537 is about 102.8996729432.

The spelling of 1089537 in words is "one million, eighty-nine thousand, five hundred thirty-seven".