1491285 has 16 divisors (see below), whose sum is σ = 2451456. Its totient is φ = 773568.

The previous prime is 1491271. The next prime is 1491299. The reversal of 1491285 is 5821941.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1491271) and next prime (1491299).

It is not a de Polignac number, because 1491285 - 2⁷ = 1491157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789 + ... + 1898.

It is an arithmetic number, because the mean of its divisors is an integer number (153216).

2^1491285 is an apocalyptic number.

1491285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1491285 is a deficient number, since it is larger than the sum of its proper divisors (960171).

1491285 is a wasteful number, since it uses less digits than its factorization.

1491285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732.

The product of its digits is 2880, while the sum is 30.

The square root of 1491285 is about 1221.1818046466. The cubic root of 1491285 is about 114.2493005270.

The spelling of 1491285 in words is "one million, four hundred ninety-one thousand, two hundred eighty-five".