125206387 has 2 divisors, whose sum is σ = 125206388. Its totient is φ = 125206386.

The previous prime is 125206363. The next prime is 125206453. The reversal of 125206387 is 783602521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125206387 - 2¹⁵ = 125173619 is a prime.

It is not a weakly prime, because it can be changed into another prime (125206337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62603193 + 62603194.

It is an arithmetic number, because the mean of its divisors is an integer number (62603194).

Almost surely, 2^125206387 is an apocalyptic number.

125206387 is a deficient number, since it is larger than the sum of its proper divisors (1).

125206387 is an equidigital number, since it uses as much as digits as its factorization.

125206387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 125206387 is about 11189.5659880087. The cubic root of 125206387 is about 500.2750313544.

The spelling of 125206387 in words is "one hundred twenty-five million, two hundred six thousand, three hundred eighty-seven".