2156430235 has 8 divisors (see below), whose sum is σ = 2631576240. Its totient is φ = 1695904224.

The previous prime is 2156430191. The next prime is 2156430253. The reversal of 2156430235 is 5320346512.

It is a happy number.

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 2156430235 - 2¹¹ = 2156428187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2156430197 and 2156430206.

It is an unprimeable number.

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, 3654672 + ... + 3655261.

It is an arithmetic number, because the mean of its divisors is an integer number (328947030).

Almost surely, 2^2156430235 is an apocalyptic number.

2156430235 is a deficient number, since it is larger than the sum of its proper divisors (475146005).

2156430235 is an equidigital number, since it uses as much as digits as its factorization.

2156430235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7309997.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 2156430235 is about 46437.3797172063. The cubic root of 2156430235 is about 1291.9483078856.

Adding to 2156430235 its reverse (5320346512), we get a palindrome (7476776747).

The spelling of 2156430235 in words is "two billion, one hundred fifty-six million, four hundred thirty thousand, two hundred thirty-five".