125005243405 has 8 divisors (see below), whose sum is σ = 171435762432. Its totient is φ = 85717881168.

The previous prime is 125005243399. The next prime is 125005243423. The reversal of 125005243405 is 504342500521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125005243405 - 2⁵ = 125005243373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1785789157 + ... + 1785789226.

It is an arithmetic number, because the mean of its divisors is an integer number (21429470304).

Almost surely, 2^125005243405 is an apocalyptic number.

It is an amenable number.

125005243405 is a deficient number, since it is larger than the sum of its proper divisors (46430519027).

125005243405 is an equidigital number, since it uses as much as digits as its factorization.

125005243405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571578395.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 125005243405 its reverse (504342500521), we get a palindrome (629347743926).

The spelling of 125005243405 in words is "one hundred twenty-five billion, five million, two hundred forty-three thousand, four hundred five".