1490561 has 8 divisors (see below), whose sum is σ = 1567680. Its totient is φ = 1414512.

The previous prime is 1490557. The next prime is 1490591. The reversal of 1490561 is 1650941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1490561 - 2² = 1490557 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1490561.

It is not an unprimeable number, because it can be changed into a prime (1490591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5126 + ... + 5408.

It is an arithmetic number, because the mean of its divisors is an integer number (195960).

2^1490561 is an apocalyptic number.

It is an amenable number.

1490561 is a deficient number, since it is larger than the sum of its proper divisors (77119).

1490561 is a wasteful number, since it uses less digits than its factorization.

1490561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1490561 is about 1220.8853345012. The cubic root of 1490561 is about 114.2308086709.

The spelling of 1490561 in words is "one million, four hundred ninety thousand, five hundred sixty-one".