238225901 has 2 divisors, whose sum is σ = 238225902. Its totient is φ = 238225900.

The previous prime is 238225877. The next prime is 238225903. The reversal of 238225901 is 109522832.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232105225 + 6120676 = 15235^2 + 2474^2 .

It is a cyclic number.

It is not a de Polignac number, because 238225901 - 2¹⁸ = 237963757 is a prime.

Together with 238225903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238225903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119112950 + 119112951.

It is an arithmetic number, because the mean of its divisors is an integer number (119112951).

Almost surely, 2^238225901 is an apocalyptic number.

It is an amenable number.

238225901 is a deficient number, since it is larger than the sum of its proper divisors (1).

238225901 is an equidigital number, since it uses as much as digits as its factorization.

238225901 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 32.

The square root of 238225901 is about 15434.5683775090. The cubic root of 238225901 is about 619.9114519744.

The spelling of 238225901 in words is "two hundred thirty-eight million, two hundred twenty-five thousand, nine hundred one".