1531266 has 16 divisors (see below), whose sum is σ = 3341088. Its totient is φ = 464000.

The previous prime is 1531253. The next prime is 1531279. The reversal of 1531266 is 6621351.

It is an interprime number because it is at equal distance from previous prime (1531253) and next prime (1531279).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11535 + ... + 11666.

It is an arithmetic number, because the mean of its divisors is an integer number (208818).

2^1531266 is an apocalyptic number.

1531266 is an abundant number, since it is smaller than the sum of its proper divisors (1809822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1531266 is a wasteful number, since it uses less digits than its factorization.

1531266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23217.

The product of its digits is 1080, while the sum is 24.

The square root of 1531266 is about 1237.4433320359. The cubic root of 1531266 is about 115.2613087530.

The spelling of 1531266 in words is "one million, five hundred thirty-one thousand, two hundred sixty-six".