152861742181 has 2 divisors, whose sum is σ = 152861742182. Its totient is φ = 152861742180.

The previous prime is 152861742167. The next prime is 152861742193. The reversal of 152861742181 is 181247168251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126315557281 + 26546184900 = 355409^2 + 162930^2 .

It is a cyclic number.

It is not a de Polignac number, because 152861742181 - 2⁷ = 152861742053 is a prime.

It is a super-2 number, since 2×152861742181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152861742881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76430871090 + 76430871091.

It is an arithmetic number, because the mean of its divisors is an integer number (76430871091).

Almost surely, 2^152861742181 is an apocalyptic number.

It is an amenable number.

152861742181 is a deficient number, since it is larger than the sum of its proper divisors (1).

152861742181 is an equidigital number, since it uses as much as digits as its factorization.

152861742181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 46.

The spelling of 152861742181 in words is "one hundred fifty-two billion, eight hundred sixty-one million, seven hundred forty-two thousand, one hundred eighty-one".