1485831 has 4 divisors (see below), whose sum is σ = 1981112. Its totient is φ = 990552.

The previous prime is 1485821. The next prime is 1485853. The reversal of 1485831 is 1385841.

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

It is not a de Polignac number, because 1485831 - 2⁷ = 1485703 is a prime.

It is a super-3 number, since 3×1485831³ = 9840779483844333573, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247636 + ... + 247641.

It is an arithmetic number, because the mean of its divisors is an integer number (495278).

2^1485831 is an apocalyptic number.

1485831 is a deficient number, since it is larger than the sum of its proper divisors (495281).

1485831 is an equidigital number, since it uses as much as digits as its factorization.

1485831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495280.

The product of its digits is 3840, while the sum is 30.

The square root of 1485831 is about 1218.9466764383. The cubic root of 1485831 is about 114.1098510228.

The spelling of 1485831 in words is "one million, four hundred eighty-five thousand, eight hundred thirty-one".