125720351 has 2 divisors, whose sum is σ = 125720352. Its totient is φ = 125720350.

The previous prime is 125720333. The next prime is 125720377. The reversal of 125720351 is 153027521.

It is an a-pointer prime, because the next prime (125720377) can be obtained adding 125720351 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125720351 - 2¹⁰ = 125719327 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125720351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125720851) 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, 62860175 + 62860176.

It is an arithmetic number, because the mean of its divisors is an integer number (62860176).

Almost surely, 2^125720351 is an apocalyptic number.

125720351 is a deficient number, since it is larger than the sum of its proper divisors (1).

125720351 is an equidigital number, since it uses as much as digits as its factorization.

125720351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 125720351 is about 11212.5086845005. The cubic root of 125720351 is about 500.9586288867.

Adding to 125720351 its reverse (153027521), we get a palindrome (278747872).

The spelling of 125720351 in words is "one hundred twenty-five million, seven hundred twenty thousand, three hundred fifty-one".