125081863 has 2 divisors, whose sum is σ = 125081864. Its totient is φ = 125081862.

The previous prime is 125081851. The next prime is 125081881. The reversal of 125081863 is 368180521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125081863 - 2²¹ = 122984711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125081833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62540931 + 62540932.

It is an arithmetic number, because the mean of its divisors is an integer number (62540932).

Almost surely, 2^125081863 is an apocalyptic number.

125081863 is a deficient number, since it is larger than the sum of its proper divisors (1).

125081863 is an equidigital number, since it uses as much as digits as its factorization.

125081863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 125081863 is about 11184.0003129471. Note that the first 3 decimals coincide. The cubic root of 125081863 is about 500.1091268476.

The spelling of 125081863 in words is "one hundred twenty-five million, eighty-one thousand, eight hundred sixty-three".