1081562 has 4 divisors (see below), whose sum is σ = 1622346. Its totient is φ = 540780.

The previous prime is 1081541. The next prime is 1081583. The reversal of 1081562 is 2651801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2651801 = 971 ⋅2731.

It is an interprime number because it is at equal distance from previous prime (1081541) and next prime (1081583).

It can be written as a sum of positive squares in only one way, i.e., 606841 + 474721 = 779^2 + 689^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270389 + ... + 270392.

2^1081562 is an apocalyptic number.

1081562 is a deficient number, since it is larger than the sum of its proper divisors (540784).

1081562 is an equidigital number, since it uses as much as digits as its factorization.

1081562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540783.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1081562 is about 1039.9817306088. The cubic root of 1081562 is about 102.6479956114.

The spelling of 1081562 in words is "one million, eighty-one thousand, five hundred sixty-two".