125545637743 has 2 divisors, whose sum is σ = 125545637744. Its totient is φ = 125545637742.

The previous prime is 125545637731. The next prime is 125545637803. The reversal of 125545637743 is 347736545521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125545637743 is a prime.

It is a super-2 number, since 2×125545637743² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125545637713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62772818871 + 62772818872.

It is an arithmetic number, because the mean of its divisors is an integer number (62772818872).

Almost surely, 2^125545637743 is an apocalyptic number.

125545637743 is a deficient number, since it is larger than the sum of its proper divisors (1).

125545637743 is an equidigital number, since it uses as much as digits as its factorization.

125545637743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584000, while the sum is 52.

The spelling of 125545637743 in words is "one hundred twenty-five billion, five hundred forty-five million, six hundred thirty-seven thousand, seven hundred forty-three".