238225961 has 2 divisors, whose sum is σ = 238225962. Its totient is φ = 238225960.

The previous prime is 238225951. The next prime is 238225987. The reversal of 238225961 is 169522832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125865961 + 112360000 = 11219^2 + 10600^2 .

It is a cyclic number.

It is not a de Polignac number, because 238225961 - 2¹⁴ = 238209577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238225901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119112980 + 119112981.

It is an arithmetic number, because the mean of its divisors is an integer number (119112981).

Almost surely, 2^238225961 is an apocalyptic number.

It is an amenable number.

238225961 is a deficient number, since it is larger than the sum of its proper divisors (1).

238225961 is an equidigital number, since it uses as much as digits as its factorization.

238225961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 238225961 is about 15434.5703211978. The cubic root of 238225961 is about 619.9115040184.

The spelling of 238225961 in words is "two hundred thirty-eight million, two hundred twenty-five thousand, nine hundred sixty-one".