235988149 has 2 divisors, whose sum is σ = 235988150. Its totient is φ = 235988148.

The previous prime is 235988147. The next prime is 235988153. The reversal of 235988149 is 941889532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224550225 + 11437924 = 14985^2 + 3382^2 .

It is a cyclic number.

It is not a de Polignac number, because 235988149 - 2¹ = 235988147 is a prime.

Together with 235988147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235988143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117994074 + 117994075.

It is an arithmetic number, because the mean of its divisors is an integer number (117994075).

Almost surely, 2^235988149 is an apocalyptic number.

It is an amenable number.

235988149 is a deficient number, since it is larger than the sum of its proper divisors (1).

235988149 is an equidigital number, since it uses as much as digits as its factorization.

235988149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 49.

The square root of 235988149 is about 15361.9057736988. The cubic root of 235988149 is about 617.9643163206.

The spelling of 235988149 in words is "two hundred thirty-five million, nine hundred eighty-eight thousand, one hundred forty-nine".