1509485 has 4 divisors (see below), whose sum is σ = 1811388. Its totient is φ = 1207584.

The previous prime is 1509463. The next prime is 1509491. The reversal of 1509485 is 5849051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 972196 + 537289 = 986^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1509485 - 2⁸ = 1509229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150944 + ... + 150953.

It is an arithmetic number, because the mean of its divisors is an integer number (452847).

2^1509485 is an apocalyptic number.

It is an amenable number.

1509485 is a deficient number, since it is larger than the sum of its proper divisors (301903).

1509485 is an equidigital number, since it uses as much as digits as its factorization.

1509485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301902.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1509485 is about 1228.6110043460. The cubic root of 1509485 is about 114.7121977933.

Subtracting from 1509485 its sum of digits (32), we obtain a triangular number (1509453 = T₁₇₃₇).

The spelling of 1509485 in words is "one million, five hundred nine thousand, four hundred eighty-five".