1430861 has 2 divisors, whose sum is σ = 1430862. Its totient is φ = 1430860.

The previous prime is 1430857. The next prime is 1430879. The reversal of 1430861 is 1680341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1394761 + 36100 = 1181^2 + 190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430861 - 2² = 1430857 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715430 + 715431.

It is an arithmetic number, because the mean of its divisors is an integer number (715431).

2^1430861 is an apocalyptic number.

It is an amenable number.

1430861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430861 is an equidigital number, since it uses as much as digits as its factorization.

1430861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1430861 is about 1196.1860223226. The cubic root of 1430861 is about 112.6849238452.

The spelling of 1430861 in words is "one million, four hundred thirty thousand, eight hundred sixty-one".