1430561 has 4 divisors (see below), whose sum is σ = 1560624. Its totient is φ = 1300500.

The previous prime is 1430543. The next prime is 1430587. The reversal of 1430561 is 1650341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1430561 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1430521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65015 + ... + 65036.

It is an arithmetic number, because the mean of its divisors is an integer number (390156).

2^1430561 is an apocalyptic number.

1430561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1430561 is a deficient number, since it is larger than the sum of its proper divisors (130063).

1430561 is a wasteful number, since it uses less digits than its factorization.

1430561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130062.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1430561 is about 1196.0606171930. The cubic root of 1430561 is about 112.6770479718.

It can be divided in two parts, 1430 and 561, that added together give a palindrome (1991).

The spelling of 1430561 in words is "one million, four hundred thirty thousand, five hundred sixty-one".