1485891 has 16 divisors (see below), whose sum is σ = 2401920. Its totient is φ = 900360.

The previous prime is 1485889. The next prime is 1485917. The reversal of 1485891 is 1985841.

It is not a de Polignac number, because 1485891 - 2¹ = 1485889 is a prime.

1485891 is a lucky 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 15 ways as a sum of consecutive naturals, for example, 2205 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (150120).

2^1485891 is an apocalyptic number.

1485891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1485891 is a deficient number, since it is larger than the sum of its proper divisors (916029).

1485891 is a wasteful number, since it uses less digits than its factorization.

1485891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023 (or 5017 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 1485891 is about 1218.9712876028. The cubic root of 1485891 is about 114.1113869756. Note that the first 3 decimals are identical.

It can be divided in two parts, 14 and 85891, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 1485891 in words is "one million, four hundred eighty-five thousand, eight hundred ninety-one".