1430609 has 4 divisors (see below), whose sum is σ = 1436160. Its totient is φ = 1425060.

The previous prime is 1430603. The next prime is 1430617. The reversal of 1430609 is 9060341.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9060341 = 421 ⋅21521.

It is a cyclic number.

It is not a de Polignac number, because 1430609 - 2⁴ = 1430593 is a prime.

It is a super-2 number, since 2×1430609² = 4093284221762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1430603) 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, 2369 + ... + 2910.

It is an arithmetic number, because the mean of its divisors is an integer number (359040).

2^1430609 is an apocalyptic number.

It is an amenable number.

1430609 is a deficient number, since it is larger than the sum of its proper divisors (5551).

1430609 is an equidigital number, since it uses as much as digits as its factorization.

1430609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1430609 is about 1196.0806828973. The cubic root of 1430609 is about 112.6783081856.

Subtracting from 1430609 its sum of digits (23), we obtain a triangular number (1430586 = T₁₆₉₁).

The spelling of 1430609 in words is "one million, four hundred thirty thousand, six hundred nine".