1489815 has 12 divisors (see below), whose sum is σ = 2582424. Its totient is φ = 794544.

The previous prime is 1489799. The next prime is 1489819. The reversal of 1489815 is 5189841.

It is not a de Polignac number, because 1489815 - 2⁴ = 1489799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1489815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16509 + ... + 16598.

It is an arithmetic number, because the mean of its divisors is an integer number (215202).

2^1489815 is an apocalyptic number.

1489815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1489815 is a deficient number, since it is larger than the sum of its proper divisors (1092609).

1489815 is a wasteful number, since it uses less digits than its factorization.

1489815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33118 (or 33115 counting only the distinct ones).

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

The square root of 1489815 is about 1220.5797802684. The cubic root of 1489815 is about 114.2117486428.

It can be divided in two parts, 1489 and 815, that added together give a square (2304 = 48²).

The spelling of 1489815 in words is "one million, four hundred eighty-nine thousand, eight hundred fifteen".