125400854173 has 8 divisors (see below), whose sum is σ = 149546360448. Its totient is φ = 102813122544.

The previous prime is 125400854147. The next prime is 125400854191. The reversal of 125400854173 is 371458004521.

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 125400854173 - 2¹³ = 125400845981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125400852173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389443486 + ... + 389443807.

It is an arithmetic number, because the mean of its divisors is an integer number (18693295056).

Almost surely, 2^125400854173 is an apocalyptic number.

It is an amenable number.

125400854173 is a deficient number, since it is larger than the sum of its proper divisors (24145506275).

125400854173 is an equidigital number, since it uses as much as digits as its factorization.

125400854173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778887323.

The product of its (nonzero) digits is 134400, while the sum is 40.

Adding to 125400854173 its reverse (371458004521), we get a palindrome (496858858694).

The spelling of 125400854173 in words is "one hundred twenty-five billion, four hundred million, eight hundred fifty-four thousand, one hundred seventy-three".