238097886181 has 2 divisors, whose sum is σ = 238097886182. Its totient is φ = 238097886180.

The previous prime is 238097886127. The next prime is 238097886199. The reversal of 238097886181 is 181688790832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190961134081 + 47136752100 = 436991^2 + 217110^2 .

It is a cyclic number.

It is not a de Polignac number, because 238097886181 - 2¹⁷ = 238097755109 is a prime.

It is a super-2 number, since 2×238097886181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238097826181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119048943090 + 119048943091.

It is an arithmetic number, because the mean of its divisors is an integer number (119048943091).

Almost surely, 2^238097886181 is an apocalyptic number.

It is an amenable number.

238097886181 is a deficient number, since it is larger than the sum of its proper divisors (1).

238097886181 is an equidigital number, since it uses as much as digits as its factorization.

238097886181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 61.

The spelling of 238097886181 in words is "two hundred thirty-eight billion, ninety-seven million, eight hundred eighty-six thousand, one hundred eighty-one".