125166061 has 2 divisors, whose sum is σ = 125166062. Its totient is φ = 125166060.

The previous prime is 125166043. The next prime is 125166073. The reversal of 125166061 is 160661521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122544900 + 2621161 = 11070^2 + 1619^2 .

It is an emirp because it is prime and its reverse (160661521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125166061 - 2⁷ = 125165933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125166961) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62583030 + 62583031.

It is an arithmetic number, because the mean of its divisors is an integer number (62583031).

Almost surely, 2^125166061 is an apocalyptic number.

It is an amenable number.

125166061 is a deficient number, since it is larger than the sum of its proper divisors (1).

125166061 is an equidigital number, since it uses as much as digits as its factorization.

125166061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 125166061 is about 11187.7638963289. The cubic root of 125166061 is about 500.2213166901.

The spelling of 125166061 in words is "one hundred twenty-five million, one hundred sixty-six thousand, sixty-one".