234470521 has 2 divisors, whose sum is σ = 234470522. Its totient is φ = 234470520.

The previous prime is 234470503. The next prime is 234470527. The reversal of 234470521 is 125074432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133749225 + 100721296 = 11565^2 + 10036^2 .

It is a cyclic number.

It is not a de Polignac number, because 234470521 - 2¹¹ = 234468473 is a prime.

It is a super-2 number, since 2×234470521² = 109952850436022882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 234470521.

It is not a weakly prime, because it can be changed into another prime (234470527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117235260 + 117235261.

It is an arithmetic number, because the mean of its divisors is an integer number (117235261).

Almost surely, 2^234470521 is an apocalyptic number.

It is an amenable number.

234470521 is a deficient number, since it is larger than the sum of its proper divisors (1).

234470521 is an equidigital number, since it uses as much as digits as its factorization.

234470521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 234470521 is about 15312.4302773923. The cubic root of 234470521 is about 616.6367672217.

The spelling of 234470521 in words is "two hundred thirty-four million, four hundred seventy thousand, five hundred twenty-one".