238182961 has 2 divisors, whose sum is σ = 238182962. Its totient is φ = 238182960.

The previous prime is 238182953. The next prime is 238182991. The reversal of 238182961 is 169281832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233478400 + 4704561 = 15280^2 + 2169^2 .

It is a cyclic number.

It is not a de Polignac number, because 238182961 - 2³ = 238182953 is a prime.

It is a super-2 number, since 2×238182961² = 113462245821455042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (238182991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119091480 + 119091481.

It is an arithmetic number, because the mean of its divisors is an integer number (119091481).

Almost surely, 2^238182961 is an apocalyptic number.

It is an amenable number.

238182961 is a deficient number, since it is larger than the sum of its proper divisors (1).

238182961 is an equidigital number, since it uses as much as digits as its factorization.

238182961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 40.

The square root of 238182961 is about 15433.1772814285. The cubic root of 238182961 is about 619.8742035796.

The spelling of 238182961 in words is "two hundred thirty-eight million, one hundred eighty-two thousand, nine hundred sixty-one".