430655261 has 4 divisors (see below), whose sum is σ = 432188124. Its totient is φ = 429122400.

The previous prime is 430655233. The next prime is 430655279. The reversal of 430655261 is 162556034.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162556034 = 2 ⋅81278017.

It can be written as a sum of positive squares in 2 ways, for example, as 177049636 + 253605625 = 13306^2 + 15925^2 .

It is a cyclic number.

It is not a de Polignac number, because 430655261 - 2¹⁴ = 430638877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430655201) 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, 766010 + ... + 766571.

It is an arithmetic number, because the mean of its divisors is an integer number (108047031).

Almost surely, 2^430655261 is an apocalyptic number.

It is an amenable number.

430655261 is a deficient number, since it is larger than the sum of its proper divisors (1532863).

430655261 is a wasteful number, since it uses less digits than its factorization.

430655261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532862.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 430655261 is about 20752.2350844433. The cubic root of 430655261 is about 755.1674327143.

The spelling of 430655261 in words is "four hundred thirty million, six hundred fifty-five thousand, two hundred sixty-one".