1506089 has 4 divisors (see below), whose sum is σ = 1621956. Its totient is φ = 1390224.

The previous prime is 1506079. The next prime is 1506091. The reversal of 1506089 is 9806051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9806051 = 127 ⋅77213.

It can be written as a sum of positive squares in 2 ways, for example, as 350464 + 1155625 = 592^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 1506089 - 2¹⁶ = 1440553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1506059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57914 + ... + 57939.

It is an arithmetic number, because the mean of its divisors is an integer number (405489).

2^1506089 is an apocalyptic number.

It is an amenable number.

1506089 is a deficient number, since it is larger than the sum of its proper divisors (115867).

1506089 is a wasteful number, since it uses less digits than its factorization.

1506089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115866.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1506089 is about 1227.2281776426. The cubic root of 1506089 is about 114.6261076959.

The spelling of 1506089 in words is "one million, five hundred six thousand, eighty-nine".