125513671 has 2 divisors, whose sum is σ = 125513672. Its totient is φ = 125513670.

The previous prime is 125513629. The next prime is 125513723. The reversal of 125513671 is 176315521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125513671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125513611) 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, 62756835 + 62756836.

It is an arithmetic number, because the mean of its divisors is an integer number (62756836).

Almost surely, 2^125513671 is an apocalyptic number.

125513671 is a deficient number, since it is larger than the sum of its proper divisors (1).

125513671 is an equidigital number, since it uses as much as digits as its factorization.

125513671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 31.

The square root of 125513671 is about 11203.2884011794. The cubic root of 125513671 is about 500.6839586412.

The spelling of 125513671 in words is "one hundred twenty-five million, five hundred thirteen thousand, six hundred seventy-one".