234401653 has 2 divisors, whose sum is σ = 234401654. Its totient is φ = 234401652.

The previous prime is 234401647. The next prime is 234401681. The reversal of 234401653 is 356104432.

It is an a-pointer prime, because the next prime (234401681) can be obtained adding 234401653 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230493124 + 3908529 = 15182^2 + 1977^2 .

It is a cyclic number.

It is not a de Polignac number, because 234401653 - 2¹³ = 234393461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234401603) 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, 117200826 + 117200827.

It is an arithmetic number, because the mean of its divisors is an integer number (117200827).

Almost surely, 2^234401653 is an apocalyptic number.

It is an amenable number.

234401653 is a deficient number, since it is larger than the sum of its proper divisors (1).

234401653 is an equidigital number, since it uses as much as digits as its factorization.

234401653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 234401653 is about 15310.1813509834. The cubic root of 234401653 is about 616.5763890569.

The spelling of 234401653 in words is "two hundred thirty-four million, four hundred one thousand, six hundred fifty-three".