125574000161 has 2 divisors, whose sum is σ = 125574000162. Its totient is φ = 125574000160.

The previous prime is 125574000143. The next prime is 125574000191. The reversal of 125574000161 is 161000475521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94221985936 + 31352014225 = 306956^2 + 177065^2 .

It is a cyclic number.

It is not a de Polignac number, because 125574000161 - 2²⁶ = 125506891297 is a prime.

It is not a weakly prime, because it can be changed into another prime (125574000191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62787000080 + 62787000081.

It is an arithmetic number, because the mean of its divisors is an integer number (62787000081).

Almost surely, 2^125574000161 is an apocalyptic number.

It is an amenable number.

125574000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

125574000161 is an equidigital number, since it uses as much as digits as its factorization.

125574000161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 125574000161 its reverse (161000475521), we get a palindrome (286574475682).

The spelling of 125574000161 in words is "one hundred twenty-five billion, five hundred seventy-four million, one hundred sixty-one", and thus it is an aban number.