1505285 has 4 divisors (see below), whose sum is σ = 1806348. Its totient is φ = 1204224.

The previous prime is 1505279. The next prime is 1505291. The reversal of 1505285 is 5825051.

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

It is an interprime number because it is at equal distance from previous prime (1505279) and next prime (1505291).

It can be written as a sum of positive squares in 2 ways, for example, as 487204 + 1018081 = 698^2 + 1009^2 .

It is a cyclic number.

It is not a de Polignac number, because 1505285 - 2¹⁴ = 1488901 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, 150524 + ... + 150533.

It is an arithmetic number, because the mean of its divisors is an integer number (451587).

2^1505285 is an apocalyptic number.

It is an amenable number.

1505285 is a deficient number, since it is larger than the sum of its proper divisors (301063).

1505285 is an equidigital number, since it uses as much as digits as its factorization.

1505285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301062.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1505285 is about 1226.9005664682. The cubic root of 1505285 is about 114.6057069992.

The spelling of 1505285 in words is "one million, five hundred five thousand, two hundred eighty-five".