125148181 has 2 divisors, whose sum is σ = 125148182. Its totient is φ = 125148180.

The previous prime is 125148157. The next prime is 125148187. The reversal of 125148181 is 181841521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116445681 + 8702500 = 10791^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 125148181 - 2¹⁵ = 125115413 is a prime.

It is a super-2 number, since 2×125148181² = 31324134415217522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125148187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62574090 + 62574091.

It is an arithmetic number, because the mean of its divisors is an integer number (62574091).

Almost surely, 2^125148181 is an apocalyptic number.

It is an amenable number.

125148181 is a deficient number, since it is larger than the sum of its proper divisors (1).

125148181 is an equidigital number, since it uses as much as digits as its factorization.

125148181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560, while the sum is 31.

The square root of 125148181 is about 11186.9647804934. The cubic root of 125148181 is about 500.1974966465.

The spelling of 125148181 in words is "one hundred twenty-five million, one hundred forty-eight thousand, one hundred eighty-one".