125918554829 has 2 divisors, whose sum is σ = 125918554830. Its totient is φ = 125918554828.

The previous prime is 125918554777. The next prime is 125918554831. The reversal of 125918554829 is 928455819521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111023572804 + 14894982025 = 333202^2 + 122045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125918554829 is a prime.

Together with 125918554831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125918554529) 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, 62959277414 + 62959277415.

It is an arithmetic number, because the mean of its divisors is an integer number (62959277415).

Almost surely, 2^125918554829 is an apocalyptic number.

It is an amenable number.

125918554829 is a deficient number, since it is larger than the sum of its proper divisors (1).

125918554829 is an equidigital number, since it uses as much as digits as its factorization.

125918554829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368000, while the sum is 59.

The spelling of 125918554829 in words is "one hundred twenty-five billion, nine hundred eighteen million, five hundred fifty-four thousand, eight hundred twenty-nine".