1491045 has 16 divisors (see below), whose sum is σ = 2410560. Its totient is φ = 786944.

The previous prime is 1491041. The next prime is 1491079. The reversal of 1491045 is 5401941.

It is a cyclic number.

It is not a de Polignac number, because 1491045 - 2² = 1491041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491041) 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, 1141 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (150660).

2^1491045 is an apocalyptic number.

1491045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1491045 is a deficient number, since it is larger than the sum of its proper divisors (919515).

1491045 is a wasteful number, since it uses less digits than its factorization.

1491045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1491045 is about 1221.0835352260. The cubic root of 1491045 is about 114.2431712933.

Adding to 1491045 its reverse (5401941), we get a palindrome (6892986).

The spelling of 1491045 in words is "one million, four hundred ninety-one thousand, forty-five".