125497277 has 2 divisors, whose sum is σ = 125497278. Its totient is φ = 125497276.

The previous prime is 125497249. The next prime is 125497279. The reversal of 125497277 is 772794521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83649316 + 41847961 = 9146^2 + 6469^2 .

It is an emirp because it is prime and its reverse (772794521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125497277 is a prime.

Together with 125497279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125497279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62748638 + 62748639.

It is an arithmetic number, because the mean of its divisors is an integer number (62748639).

Almost surely, 2^125497277 is an apocalyptic number.

It is an amenable number.

125497277 is a deficient number, since it is larger than the sum of its proper divisors (1).

125497277 is an equidigital number, since it uses as much as digits as its factorization.

125497277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 44.

The square root of 125497277 is about 11202.5567171070. The cubic root of 125497277 is about 500.6621587046.

The spelling of 125497277 in words is "one hundred twenty-five million, four hundred ninety-seven thousand, two hundred seventy-seven".