1481531 has 4 divisors (see below), whose sum is σ = 1485000. Its totient is φ = 1478064.

The previous prime is 1481527. The next prime is 1481537. The reversal of 1481531 is 1351841.

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

It is a cyclic number.

It is not a de Polignac number, because 1481531 - 2² = 1481527 is a prime.

It is a super-2 number, since 2×1481531² = 4389868207922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1481497 and 1481506.

It is not an unprimeable number, because it can be changed into a prime (1481537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986 + ... + 1983.

It is an arithmetic number, because the mean of its divisors is an integer number (371250).

2^1481531 is an apocalyptic number.

1481531 is a deficient number, since it is larger than the sum of its proper divisors (3469).

1481531 is an equidigital number, since it uses as much as digits as its factorization.

1481531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468.

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

The square root of 1481531 is about 1217.1815805376. The cubic root of 1481531 is about 113.9996665631. Note that the first 3 decimals are identical.

The spelling of 1481531 in words is "one million, four hundred eighty-one thousand, five hundred thirty-one".