125400046249 has 2 divisors, whose sum is σ = 125400046250. Its totient is φ = 125400046248.

The previous prime is 125400046241. The next prime is 125400046271. The reversal of 125400046249 is 942640004521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94790094400 + 30609951849 = 307880^2 + 174957^2 .

It is an emirp because it is prime and its reverse (942640004521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125400046249 - 2³ = 125400046241 is a prime.

It is not a weakly prime, because it can be changed into another prime (125400046241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62700023124 + 62700023125.

It is an arithmetic number, because the mean of its divisors is an integer number (62700023125).

Almost surely, 2^125400046249 is an apocalyptic number.

It is an amenable number.

125400046249 is a deficient number, since it is larger than the sum of its proper divisors (1).

125400046249 is an equidigital number, since it uses as much as digits as its factorization.

125400046249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 125400046249 in words is "one hundred twenty-five billion, four hundred million, forty-six thousand, two hundred forty-nine".