125225977 has 2 divisors, whose sum is σ = 125225978. Its totient is φ = 125225976.

The previous prime is 125225959. The next prime is 125225983. The reversal of 125225977 is 779522521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104468841 + 20757136 = 10221^2 + 4556^2 .

It is a cyclic number.

It is not a de Polignac number, because 125225977 - 2¹¹ = 125223929 is a prime.

It is not a weakly prime, because it can be changed into another prime (125225377) 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, 62612988 + 62612989.

It is an arithmetic number, because the mean of its divisors is an integer number (62612989).

Almost surely, 2^125225977 is an apocalyptic number.

It is an amenable number.

125225977 is a deficient number, since it is larger than the sum of its proper divisors (1).

125225977 is an equidigital number, since it uses as much as digits as its factorization.

125225977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 125225977 is about 11190.4413228433. The cubic root of 125225977 is about 500.3011212822.

The spelling of 125225977 in words is "one hundred twenty-five million, two hundred twenty-five thousand, nine hundred seventy-seven".