125430397 has 2 divisors, whose sum is σ = 125430398. Its totient is φ = 125430396.

The previous prime is 125430373. The next prime is 125430443. The reversal of 125430397 is 793034521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65383396 + 60047001 = 8086^2 + 7749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125430397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125430337) 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, 62715198 + 62715199.

It is an arithmetic number, because the mean of its divisors is an integer number (62715199).

Almost surely, 2^125430397 is an apocalyptic number.

It is an amenable number.

125430397 is a deficient number, since it is larger than the sum of its proper divisors (1).

125430397 is an equidigital number, since it uses as much as digits as its factorization.

125430397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 125430397 is about 11199.5712864377. The cubic root of 125430397 is about 500.5732052870.

It can be divided in two parts, 1254303 and 97, that added together give a square (1254400 = 1120²).

The spelling of 125430397 in words is "one hundred twenty-five million, four hundred thirty thousand, three hundred ninety-seven".