125401447 has 2 divisors, whose sum is σ = 125401448. Its totient is φ = 125401446.

The previous prime is 125401427. The next prime is 125401457. The reversal of 125401447 is 744104521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125401447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125401427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62700723 + 62700724.

It is an arithmetic number, because the mean of its divisors is an integer number (62700724).

Almost surely, 2^125401447 is an apocalyptic number.

125401447 is a deficient number, since it is larger than the sum of its proper divisors (1).

125401447 is an equidigital number, since it uses as much as digits as its factorization.

125401447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 125401447 is about 11198.2787516654. The cubic root of 125401447 is about 500.5346906746.

Adding to 125401447 its reverse (744104521), we get a palindrome (869505968).

The spelling of 125401447 in words is "one hundred twenty-five million, four hundred one thousand, four hundred forty-seven".