1536281 has 2 divisors, whose sum is σ = 1536282. Its totient is φ = 1536280.

The previous prime is 1536263. The next prime is 1536287. The reversal of 1536281 is 1826351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 697225 = 916^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1536281 - 2¹⁸ = 1274137 is a prime.

It is a super-2 number, since 2×1536281² = 4720318621922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1536281.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1536287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 768140 + 768141.

It is an arithmetic number, because the mean of its divisors is an integer number (768141).

2^1536281 is an apocalyptic number.

It is an amenable number.

1536281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1536281 is an equidigital number, since it uses as much as digits as its factorization.

1536281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 1536281 is about 1239.4680310520. The cubic root of 1536281 is about 115.3870011700.

The spelling of 1536281 in words is "one million, five hundred thirty-six thousand, two hundred eighty-one".