125402354554439 has 2 divisors, whose sum is σ = 125402354554440. Its totient is φ = 125402354554438.

The previous prime is 125402354554409. The next prime is 125402354554453. The reversal of 125402354554439 is 934455453204521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125402354554439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125402354554409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62701177277219 + 62701177277220.

It is an arithmetic number, because the mean of its divisors is an integer number (62701177277220).

Almost surely, 2^{125402354554439} is an apocalyptic number.

125402354554439 is a deficient number, since it is larger than the sum of its proper divisors (1).

125402354554439 is an equidigital number, since it uses as much as digits as its factorization.

125402354554439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840000, while the sum is 56.

The spelling of 125402354554439 in words is "one hundred twenty-five trillion, four hundred two billion, three hundred fifty-four million, five hundred fifty-four thousand, four hundred thirty-nine".