1430189 has 4 divisors (see below), whose sum is σ = 1443420. Its totient is φ = 1416960.

The previous prime is 1430183. The next prime is 1430197. The reversal of 1430189 is 9810341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9810341 = 67 ⋅146423.

It can be written as a sum of positive squares in 2 ways, for example, as 574564 + 855625 = 758^2 + 925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1430189 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430183) 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, 6452 + ... + 6669.

It is an arithmetic number, because the mean of its divisors is an integer number (360855).

2^1430189 is an apocalyptic number.

It is an amenable number.

1430189 is a deficient number, since it is larger than the sum of its proper divisors (13231).

1430189 is a wasteful number, since it uses less digits than its factorization.

1430189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13230.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1430189 is about 1195.9050965691. The cubic root of 1430189 is about 112.6672803595.

It can be divided in two parts, 14 and 30189, that added together give a palindrome (30203).

The spelling of 1430189 in words is "one million, four hundred thirty thousand, one hundred eighty-nine".